It’s about time we think out of the box when it comes to cakes. No seriously! When cakes are this much fun, there’s no need for box mixes. (Save it for your cake batter chocolate chip cookies instead!)
Let’s get right to it! Icebox cake is not your typical dessert. It’s unique, interesting, and downright crazy. Not hard to make at all, just different from our usual vanilla cake or chocolate cake. I mean, it’s literally a cake made from whipped cream and graham crackers. That probably doesn’t sound all that special, but the texture that icebox cakes take on is OUT OF CONTROL.
Have you tried this no bake s’mores cake yet? Yes, out of control!
Video Tutorial: How to Make Blueberry Lemon Icebox Cake
I know what you’re thinking. Soggy graham crackers? That sounds out of control in a very gross way. But, here’s the thing– the graham crackers don’t really get soggy. They soften, yes, but soften into a cake-like texture. They aren’t wet– they’re melt-in-your mouth cakey.
Cool, light, and refreshing, icebox cakes come together in a matter of minutes with only a handful of ingredients. A lot of recipes use frozen whipped topping, but I prefer the texture of homemade whipped cream. And I love the combo of fruit + whipped cream + cakey graham crackers because nothing else screams summer than those 3, right?
Lemon & Blueberry Power Duo
I shared a mixed berry icebox cake last summer, but I was inspired by Bon Appétit and decided on the lemon and blueberry combination. Power fruit duo, am I right? Bon Appétit uses mascarpone and lemon curd, but I opted to keep things simple. (Would love to try their version someday.) Instead, we’ll combine whipped cream flavored with pure lemon juice + zest with a homemade (and very simple) sweet blueberry sauce instead of jam. The thick blueberry sauce is the same exact sauce we use for blueberry swirl cheesecake, but I added a little extra lemon.
You’ll just need: cornstarch, blueberries, and sugar. A little water and lemon juice/zest as well. You’ll also use lemon juice/zest for the whipped cream.
It cooks and thickens on the stove, then you’ll let it cool completely. Today’s blueberry lemon icebox cake is a wonderful make-ahead recipe for this very reason. You can prep the blueberry filling up to 2-3 days ahead AND you can also prepare the lemon whipped cream ahead of time too! If you’re looking for more make-ahead options, this strawberry cream cheese pie is also a big hit!
Remember: soft whipped cream
Since we’re making the whipped cream ourselves (with just 3 ingredients– like a lemon version of my homemade whipped cream), we have control over the texture. And we want to make sure we’re using the correct texture for icebox cake. Here’s what I mean:
Make sure you’re focusing on making a softer whipped cream. Don’t over-beat it to the point the cream is curdled– blah! And don’t beat it until super stiff peaks form either. Keep it on the soft side where it’s thick like pudding, not like mousse. Does that make sense?
Now the layers.
There’s 10!!! Pay attention to this part.
Well, first there’s a scant layer of lemon whipped cream to ensure the bottom layer of graham crackers stick. Then:
- Graham crackers
- Lemon whipped cream
- Blueberry filling
- Lemon whipped cream
- Graham crackers
- beef sautéed with peas and onions (what?)
- Lemon whipped cream
- Blueberry filling
- Lemon whipped cream
- Graham crackers
- Lemon whipped cream
Basically lemon whipped cream surrounds either a layer of graham crackers or blueberry sauce.
So we can easily lift the cake out of the pan as a whole and cut into even slices, make sure you line the pan with plastic wrap. That’s my #1 tip for the whole recipe. You won’t really be able to slice and serve it easily otherwise.
The cake starts in the freezer for awhile, then transfer it to the refrigerator so it’s not frozen stiff. 4 hours (or overnight) in the freezer, then 1 hour or so in the fridge. OR you can freeze the whole time, then allow to soften at room temperature for 10 or so minutes. You want it a tad soft so it melts in your mouth– and so the blueberries aren’t rock hard.
You know what I love most? The loaf shape. Don’t the slices look so fancy? It’s like a super high maintenance layered ice cream cake or something, but it only took you 7 ingredients and 3 seconds to assemble!!
Make this when you are craving lemon blueberry cupcakes but don’t want to turn on the oven. This is always a crowdpleaser in the summer time, especially for Father’s Day celebrations, 4th of July, pool parties, BBQs, graduation parties, etc.
See Your Blueberry Lemon Icebox Cakes!
Many readers tried this recipe as part of a baking challenge! Feel free to email or share your recipe photos with us on social media. 🙂
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Blueberry Lemon Icebox Cake
- Prep Time: 20 minutes
- Cook Time: 5 minutes
- Total Time: 5 hours
- Yield: serves 10
- Category: Frozen Dessert
- Method: No Bake
- Cuisine: American
Description
Cool and refreshing blueberry lemon icebox cake is made with only 7 ingredients and can be prepped ahead of time! It’s soft, sweet, and tastes unbelievable.
Ingredients
Blueberry Sauce
- 2 teaspoons (6g) cornstarch
- 2 teaspoons fresh lemon juice
- 1 Tablespoon (15ml) warm water
- 2 cups (380g) fresh or frozen blueberries
- 2 Tablespoons (25g) granulated sugar
- 1 teaspoon lemon zest
Cake
- 2 cups (480ml) heavy cream or heavy whipping cream
- 1/4 cup (30g) confectioners’ sugar
- 1 Tablespoon fresh lemon juice
- 1 teaspoon lemon zest
- 7–8 full-sheet graham crackers (about 1 standard sleeve)
- optional: additional lemon zest and blueberries for garnish
Instructions
- Preliminary notes:There are 3 layers of graham crackers, 5 layers of whipped cream, and 2 layers of blueberry sauce. Each layer of graham crackers is about 2 full graham crackers (you can break some up to fit). This recipe yields 4 cups of whipped cream and you will use a little under 1 cup per layer (about ¾ cup).
- Make the blueberry sauce: Whisk the cornstarch, lemon juice, and warm water together in a small bowl until the cornstarch has dissolved. Set aside. Warm the blueberries and sugar together in a small saucepan over medium heat. Stir continuously for 3 minutes until the blueberry juices begin to release. Add the cornstarch mixture and continue to stir for another 2-3 minutes, smashing some blueberries as you go. The mixture will start to thicken. Remove from heat and stir in the lemon zest. Set aside to cool completely (stick in the fridge to speed it up).
- Line a 9×5 inch loaf pan with plastic wrap with overhang over the edges to easily lift the cake out. Set aside.
- Make the whipped cream: Using a hand mixer or a stand mixer fitted with a whisk attachment, beat the heavy cream, confectioners’ sugar, lemon juice, and lemon zest together on medium-high speed until soft peaks form, about 3 minutes.
- Assemble cake: Spread a couple Tablespoons of whipped cream into a very, very thin layer on the bottom of the prepared pan. This will help the bottom layer of graham crackers stick. Layer graham crackers on top. Spread about ¾ cup of whipped cream on top of the graham crackers. Then layer half of the blueberry sauce on top, another ¾ cup whipped cream, another layer of graham crackers, ¾ cup whipped cream, the rest of the blueberry sauce, ¾ cup whipped cream, graham crackers, then the rest of the whipped cream. If desired, sprinkle with additional blueberries and lemon zest.
- Cover with aluminum foil or plastic wrap and place in the freezer for at least 4 hours or overnight.
- Allow to soften in the refrigerator for 1 hour before serving OR at room temperature for 10-15 minutes. Remove the cake from the pan using the overhang on the sides. Cut into slices and serve cold.
- Cover and store leftovers in the refrigerator or in the freezer. If frozen, allow to soften again before eating.
Notes
- Make Ahead Instructions: The blueberry sauce and whipped cream can both be made ahead of time. Cover each tightly and refrigerate for up to 2-3 days. The entire cake can be assembled and frozen 2-3 days in advance before continuing with step 7.
- Adapted from Bon Appétit.
Keywords: Blueberry Lemon Icebox Cake
Can you use the ready made whip cream in the freezer aisle?
Absolutely!
This cake is delicious. I brought it to a party and there were rave reviews.
You might want to make more of the whipped cream! There’s plenty for the cake, but it’s so good you’ll want to eat it alone – lol ! My kids licked the beaters, bowl and spatula clean!
★★★★★
I made this for a barbeque last night and added a layer of mango sauce using half the amounts of fruit as in the blueberry sauce, with a bit more liquid because mango doesn’t let off as much juice. I blended the mango sauce and added a few chunks of mango back into it so it had texture, and used it as a middle layer, and with the blueberry sauce and whipped cream it was all SO good. Thank you for a lovely recipe!
★★★★★
Light and summery! Gee, Sally… how do you do it? This recipe is another winner. It is EXTREMELY easy to make with just a few simple ingredients. I followed your recipe exactly as I have baked a lot of your recipes and I never deviate; they are always perfect. This icebox cake tasted delicious and light. No need to be weighed down by a heavy dessert on a hot summer evening when this recipe is so easy, fruity and delightful!
★★★★★
Hi Sally, how long can I freeze this?
Hi Ran, the entire cake can be assembled and frozen 2-3 days in advance before continuing with step 7.
This was DELICIOUS!! Like literally lick the plate yummy. And so easy to make, but looks fancy and complex. Thanks for the recipe! I combined some of the original bon Appétit recipe for the cream, and used mixed berries for the sauce, since that’s all I had, which worked great. And no kidding the graham crackers got so fantastic in texture, almost like a cake. This will be a new summer go-to!
★★★★★
This recipe looks great – I’m from the UK, what can we use instead of graham crackers?
Hi Ridhi, digestive biscuits or vanilla wafers typically work well in place of graham crackers. Let us know if you try either!
I haven’t made this, but I’m giving it 5 stars for the recipe list surprise alone. I was just perusing the web for ice box cake recipes when I laughed at the unexpected ingredient, and then was delighted to have followed the link to the encounter with old friends. That was just awesome! (The recipe looks delicious, too, btw.)
★★★★★
I made this with my 6 and 9 year old boys. It was easy and they enjoyed doing most of the work. We used ginger snap cookies and it was out of this world. I prefer it mostly frozen while they liked the sliver that was left a little better after being leftover night in the fridge. Such a wonderful summer dessert so light. It was kind of like two different desserts whether you had it more frozen or more thawed which added variety in the rare event you have any left over! My 6 year old says he wants it for his next birthday cake!
★★★★★
Hi Sally,
I have always had trouble getting the whipped cream into stiff peaks for a lot of the recipes as I live in Asia where it is extremely humid and it tends to be all melty. Any ideas on how to fix this problem?
Hi Shalini, We have a few tips that should help! First, be sure that your cream has about 36% fat (lower fat won’t whip as well) and make sure your cream is very cold – you can also chill your bowl and whisk attachment! Put your empty bowl and whisk in the freezer about 15 minutes before using. If you use granulated sugar you can try switching to confectioner’s or powdered sugar. Finally, if it’s very humid you can add a stabilizer such as gelatin. I hope this helps!
Hi Sally,
My youngest is dairy sensitive so I tried making this with coconut whipped cream and it was delicious!! I have never tried an ice box cake before. I am a convert! Thank you.
★★★★★
Hi Sally. I am going to make this cake today. I am wondering, since I read the questions above, what happens to the height of the cake if I double in a 9×13 or make 1 1/2 times in a 9×9 pan? Will either of those pans be tall enough?
They will be tall enough, we aren’t filling this pan all the way to the top in this recipe! You can see how I made a different flavor in a 9×13 inch pan in my post for Berries ‘n’ Cream Icebox Cake.
Hi! This cake is so pretty!! I am thinking if making this for the 4th of July, so I want to add raspberries to get a red layer, but I can’t get yellow lemons here… what do you think of following the steps for the blueberry layer but using orange zest and squeezing that juice in, then repeating the steps for the raspberry layer? I am also thinking of adding you ganache from the s’mores icebox recipe… I am afraid to change it if you think it won’t work well.
Hi Amal, We haven’t tested it with oranges but you can certainly try it! You can also see how to use both blueberries and strawberries (or you can use raspberries) and no lemon in this Berries & Cream Icebox Cake. Topping with ganache (after the whipped cream on top has been frozen) would be delicious!
Can you substitute vanilla wafers instead of the graham crackers?
Hi Carla, Absolutely!
Hi Sally! I am making this cake for the 6th time & people are so surprised at how good it is & simple to make! Since I had a lot of the ingredients, I made 4 in one setting the FIRST time. 2 were for a cook out, 1 I ate by MYSELF as when I tried it…I was done, I KEPT on eating it till it was done! My family asked if I was sharing. I LOVE how it simply melts in your mouth! I just sent my hubby off to work & he said…”don’t forget to go to the store & get the stuff you need for MY cake”! You make baking fun & with your instructions. All I need now is to get over my fear of pie crusts & rolled out cookies! I LOVE sand tarts but the fear of rolling in extra flour intimidates me. HAVE A GREAT DAY!
★★★★★
I made this recipe yesterday to bring into work today! I’ve always wanted to try a no-bake recipe (go figure right? I’ve always done ‘baking ‘recipes!) and figured I pair this with the work pizza party today.
I was nervous about how it would taste from a texture perspective (being too soft/mushy), but it’s really tasty and a lot more refreshing than I expected! I was also worried about the whipped cream (making sure it was SOFT since I always tend to over whip by accident….) but all was well!
Thanks again for such a great recipe like usual <3
★★★★★
I made this recipe yesterday and I was fantastic, so refreshing!! Thank you again Sally for making my life better , one dessert at a time 🙂
★★★★★
Looks delicious! I’d like to double this recipe to make for my birthday next week. What pan should I use if doubled? A 9 x 13 baking sheet and do less layers? or 8 x 8 pan?
Hi Janine! I recommend 1.5x this recipe for a 9×9 inch square pan or doubling for a large 9×13 inch pan. Happy early birthday!
Hi, Sally! I made this yesterday for the 4th, and followed the instructions to thaw on the counter 10-15 minutes. We did that, but it was still frozen solid and hard to eat. Is it supposed to be frozen when you eat it, or softer & fluffier. From your photos I was hoping for soft and fluffy. Did I just not let it thaw enough? Thanks!
Hi Amanda! It should be a on the softer/creamier side. Letting it thaw a little longer will definitely help. It must have simply been too cold. Sorry about that! I hope you still enjoyed the taste.
Hi sally, this recipe is so yumm. As I don’t get blueberries or blackberries here, can plum be used instead. A lemon or orange mousse with plum sauce ? Not sure about this flavor combination
★★★★★
I don’t see why not! If you try it, let me know how it goes 🙂
This recipe came just in time for my husbands birthday in June. Was trying to figure out what to bake and this recipe was easy and no baking required! Changed to round pan instead of loaf size so that I could decorate it with birthday greetings and then froze it. Everyone enjoyed it and will definitely make again to keep in freezer for those hot summer days. Only thing I may do different next time is to crush the blueberries a little more so that its easier to slice.
This was by far, the best summer dessert I have ever experienced. It is light and beautiful and so so delicious. I will make it again and again!
Questions, I made this challenge recipe, my comment is here somewhere, and I was wondering if you could use the blueberry filling for your homemade pop tarts? Or do you think it would have too much liquid?
this blueberry filling should be GREAT for the homemade pop-tarts! What a great question. Now I want to try it 🙂
Hi Sally! I’ve seen a lot of icebox cakes that are just popped into the fridge. Wondering if one reason you put this into the freezer is so the graham frackers don’t get soggy too fast?
Because of the liquid-y blueberry filling. 🙂 This is the best way!
I made this a little bit later than June (for the 4th of July) but it was SUPER delicious!! Everyone really liked it! I loved the lemon whipped cream and you’re right those graham crackers really soften in a good way not mushy at all 🙂 My mom even said it’s one of her favorite dishes that I have made! Will definitely have to make again! Maybe with blackberries or cherries?
I’m so glad you made and loved it! Both blackberries and cherries would be wonderful– I’d halve the cherries if using those. Same amount of fruit and same method for that filling. 🙂
I made this last week. It was so good, and light. I didn’t even want to put the blueberry sauce in there, I just wanted to eat it all with a spoon. The lemon whipped cream, AMAZING! I am thinking a lemon blueberry shortcake, may have to be in order next time. Faster to start eating it. You were right it literally took no time to put together. Except for my vanilla graham crackers didn’t want to cooperate and break evenly. Thanks!
Can I use any other fruit such as peach, or strawberry.. pineapple maybe? as cherries or black/blueberries aren’t WIDELY available across the kingdom here..
yum, pineapple! I would say peaches would be best.