4 Ingredient Peanut Butter Fudge

The creamiest, smoothest, peanut butteriest fudge ever. Only 4 ingredients and no candy thermometer or stove are required.

The creamiest, smoothest, peanut butteriest, BEST fudge ever! Only 4 ingredients and no candy thermometer or stove are required. @sallybakeblog

Warning! Warning! You are about to enter dangerous fudge territory.

Let me preface this recipe by saying a few things: if you’re a peanut butter freak like me, you should not be trusted around this fudge. One taste and all self control will be lost. All healthy eating plans will flush down the drain. If you were planning to skip dessert today, then I’m sorry.

Not really.

The creamiest, smoothest, peanut butteriest, BEST fudge ever! Only 4 ingredients and no candy thermometer or stove are required. @sallybakeblog

I’ve made this peanut butter fudge before. Many years ago before this blog. This fudge “recipe” has been sitting in a box of saved recipe scraps. I nearly forgot about it. I know! How does a peanut butter lover like me forget about peanut butter fudge?!

Anyway. I made today’s fudge on Saturday after we carved pumpkins. And by “we” I mean Kevin and his niece. I simply watched them. I took their picture, drank homemade apple cider, and roasted pumpkin seeds. Naturally.

My honest intention for this fudge was to bring it along on a coffee date with my friends the next morning. After I took these photos, I placed the fudge in a tupperware and hid it in the fridge from myself. I walked away and tried to forget about it. (If your love for peanut butter runs deep like mine, then you’d do the same thing.)

Kevin popped open the fridge after dinner.

“You want a piece?”

“No! It’s for Kristen tomorrow.”

“Are you sure?

“Well, ok. A small piece. And those little crumbs around it too.”

“I know you’re going to want more than 1 small piece, Sally.”

The man knows me too well.

The creamiest, smoothest, peanut butteriest, BEST fudge ever! Only 4 ingredients and no candy thermometer or stove are required. @sallybakeblog

So Kristen, if you’re reading – the small plate of fudge I gave you?

Yeah, it was supposed to be much larger. Whoops. So you want to make the fudge yourself? It’s dangerously easy. And when it comes to candy making, I prefer easy.

Here are your ingredients:

  • Butter
  • Peanut butter
  • Vanilla extract
  • Confectioners’ sugar

Yeah, that’s it. Total health food. Oh! There are chocolate chips and Reese’s peanut butter cups too. But those two extras are only if you want a little chocolate action with your peanut butter. The fudge is pretty fan-freaking-tastic without any chocolate. I can’t believe I’m saying that.

All you do is melt the peanut butter and butter together. Then mix in the vanilla and the sugar. If using chocolate add-ins, mix those in right away when the fudge is still warm. The warmth will slightly melt the chocolate as you stir everything together. You don’t need a candy thermometer, you don’t need a stove, you don’t need 1,000 dishes. This fudge is a 10Β minute recipe, tops. A blessing if you’re feeling lazy and a curse to your skinny jeans.

The creamiest, smoothest, peanut butteriest, BEST fudge ever! Only 4 ingredients and no candy thermometer or stove are required. @sallybakeblog

I can see myself making this fudge often. Some for every neighbor, friend, relative, Kevin’s co-workers, Kevin’s hungry friends, and family. The fudge freezes quite well (thankfully!). So if you’re a “think ahead baker” like I am, you can make this fudge now for the upcoming holidays. Just set it in the refrigerator to thaw and then give away to all the peanut butter lovers in your life.

Don’t say I didn’t warn you!

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Peanut Butter Fudge

  • Author: Sally
  • Prep Time: 10 minutes
  • Cook Time: 0 minutes
  • Total Time: 4 hours, 10 minutes
  • Yield: 48 squares
  • Category: Candy
  • Method: Baking
  • Cuisine: American


Creamy and smooth peanut butter fudge made with only a few ingredients. It’s dangerously good! No candy thermometer, no stove, just a few simple steps to make this decadent fudge.


  • 1 cup (250g) creamy peanut butter*
  • 1 cup (2 sticks or 230g) unsalted butter
  • 1 teaspoon pure vanilla extract
  • 4 cups (460g) sifted confectioners’ sugar*
  • optional: 1/4 teaspoon salt
  • optional: 3/4 cup add-ins, such as chocolate chips, peanuts, or Reese’s Peanut Butter Cups


  1. Line an 8-inch or 9-inch square baking pan with aluminum foil, leaving an overhang on the sides to lift the finished fudge out.
  2. Melt the peanut butter and butter together in a large bowl. I prefer to slice the butter to make melting easier. Stop the microwave and stir the mixture every minute until completely melted and smooth. Remove from the microwave and stir in the vanilla using a large rubber spatula or wooden spoon. Add the salt if you prefer a salty/sweet fudge. Add the sifted confectioners’ sugar and stir until completely combined. The mixture is very, very thick and resembles cookie dough. If using any add-ins, fold them into the fudge while it is still warm.
  3. Press the fudge into prepared baking pan, smoothing the top with the back of a spatula or spoon. The top will be somewhat oily. Cover tightly with aluminum foil and chill for at least 4 hours or until firm. Cut into pieces.
  4. Store fudge in an airtight container in the refrigerator for up to 1 week.


  1. Freezing Instructions: Fudge may be frozen for up to 2 months. To thaw, simply transfer to the refrigerator for 2-4 hours.
  2. Peanut Butter: I recommend using store bought creamy peanut butter, not homemade. If using natural, make sure the peanut butter is not oily at all. Crunchy peanut butter is OK.
  3. Confectioners’ Sugar: Sift confectioners’ sugar before measuring. Weights may vary depending on brand, make sure you measure exactly 4 cups. I used Domino.
  4. Original source of the recipe is the Joy of Cooking Cookbook. I made a few slight changes to increase peanut butter flavor.

Keywords: peanut butter fudge


Comments are closed.

  1. Rochelle @ Oh So Sweet Baker says:

    I love your quick version of fudge. I hate the standing over the pan stirring version.

    1. That makes two of us! This is what I call a “lazy girl’s fudge”

  2. Erin | The Law Student's Wiferin says:

    Bring on the stretchy pants! A PB lover to the core, I know I can’t be trusted, so I may as well go all in!

    1. hahahaha stretchy pants. YES.

  3. This just makes me think of Christmas! I only ever make fudge around Christmas and oh my gosh, I have to make this fudge! Y.U.M! You know I am a peanut butter lover!

    1. Tieghan, I knew you’d love this fudge! I’m sure if you made it you would add all sorts of goodies to make it extra fancy. Your flavor combos blow my mind sometimes.

  4. Oh my! My due date is only 3 weeks away, and, truth be told, I’ve been eating with reckless abandon! I’m adding this to my list:)

    1. I had a feeling your due date was nearing, Meredith! It’s been so nice hearing from you in these comments the past few months. You’re almost there! Definitely make this fudge. It requires hardly any work and is so dang good!

  5. I’ve never been a huge fudge fan, but this is one I can get behind because it has peanut butter in it! I know I would like this one!

  6. 4 ingredient fudge?? DONE. I am SO doing this tomorrow. You’re gong to make me uber fat, Sally! <3

  7. Jen and Emily @ Layers of Happiness says:

    So…. I was planning making some complicated dish for a Halloween party in a couple of days… But this?! This. Oh my gosh. This. Looks so much better and so much easier… I just can’t even handle how excited I am to make this!!!

    1. SO much easier than anything I’ve ever made before. And people freak out over it. “I can’t believe how good this is” are the usual responses when it’s eaten. πŸ˜‰

  8. Yes! This is perfect with peanut butter and only 4 ingredients! I would so add the extra candy bet it intensifies the flavor!

  9. So dangerous. So delicious. I think some of the recipes that sit around for years (so many at my parents house I can’t wait to get my hands on) are the best! This looks so good.

    1. It’s an oldie, but goodie recipe for sure. Some of my favorite recipes are timeless classics from my grandmother!

  10. Cate @ Chez CateyLou says:

    You didn’t lie, this is dangerous fudge territory! I would not be able to stop after one piece – this looks way too good!! And I love how easy it is!

  11. This is definitely health food at its finest. There’s nothing a pair of stretchy pants cannot fix! And I love drinking warm apple cider at fall festivals. I swear it tastes ten times better if you’re at a fall festival than sipping it from a jug at home. It’s the fall air πŸ˜‰

    1. Lauren – YES! Apple cider is so much better when you’re doing fall things. Ha!

      And yes, this fudge screams stretchy pants.

  12. Erin @ The Spiffy Cookie says:

    I was never a fan of fudge until I discovered the pb kind.Go figure.

    1. Hahaha I am not at all surprised, Erin.

  13. Nicole @ The Marvelous Misadventures of a Foodie says:

    Sally, this is my absolute favorite method for making pb fudge! And like you each time I make it, it almost never gets to who I intended it for. One year I thought it would be a good idea to include in my holiday gift baskets…ha! Not even close πŸ™‚

    1. Haha, I know exactly what you mean Nicole. Much too irresistible to give away!

  14. Oh this looks absolutely amazing…my boyfriend and I are in trouble tonight! πŸ˜›
    One question about your note for the peanut butter, does homemade peanut butter work for this as well? Like the stuff that is just ground up peanuts from those machines at the store?

    1. Hi Jessica, in the recipe notes I do state that homemade peanut butter is not a great choice for this fudge. Unfortunately, purely ground peanuts are much too oily to produce the correct consistency of the fudge. If I am using a natural style peanut butter, I make sure it is not oily in the slightest. Nothing I have to stir. I like Skippy Natural Style.

  15. Norma | Allspice and Nutmeg says:

    Oh, I’m in trouble now. LOVE peanut butter fudge.

  16. Rebecca @ Dorm Room Baker says:

    Finally some fudge I can make in my dorm room! Not to mention it looks absolutely delectable. So excited!

  17. Laura @ Lauras Baking Talent says:

    Looks Yummy!

  18. Averie @ Averie Cooks says:

    Your fudge looks great! I love making confectioners’ sugar PB fudge. So simple, can’t go wrong, works every time! The add-ins are a nice little bonus πŸ™‚

    1. Thank you Averie!

  19. Oh my word I am drooling at the thought!! I need this fudge in my life- right now!!!

  20. Stephanie @ Girl Versus Dough says:

    This is the perfect edible holiday gift! I’m going to have make an extra 11 batches or so though, because I won’t be able to control myself from taking samples. πŸ™‚

  21. Pamela @ Brooklyn Farm Girl says:

    I just posted some pumpkin fudge today, glad to see other fudge fans! Fudge is so dangerous to me, I can just eat it and I absolutely love how easy your recipe is! Definitely will be making this for the holidays!

    1. Pumpkin fudge! I must check out your recipe for it. πŸ™‚

  22. Thank you Sally for posting this. My son is asking for peanut butter fudge and this is exactly what I needed! Can’t wait to try it and give as gifts! πŸ™‚

    1. Perfect! Let me know how you (and your son!) like it. Thanks Rhonda!

  23. Valerie | From Valerie's Kitchen says:

    Love this peanut butter twist on fudge. Looks wonderful!

  24. I can’t wait to try this recipe tomorrow! I’m totally addicted to your recipes!!!
    I have a query though – I have a friend who hates the taste of peanut butter (I know right???!!!!) so I was wondering if I could sub it for cashew butter instead?
    I’ll obviously be making batches of this in all it’s glorious simple decadence, but it’d be handy to know if I COULD switch if I was to make some for my friend?

    1. Hi Fee! That is a great question. I would assume this fudge could be made with another nut butter (a non-oily one). But I can’t be 100% it would work out since I’ve never attempted it myself. You can certainly try it though! I can’t see why it wouldn’t work.

      1. Thanks so much πŸ™‚

  25. Hi Sally!

    Do I chill it in the fridge or just room temperature? May be a silly question. I know. :/


    1. Yes, chill the fudge in the refrigerator.

  26. Kelli @ The Corner Kitchen says:

    This is going on my holiday baking list! Like, at the top of the list! PB fudge for everyone!!

    1. It will be a happy holiday for sure. πŸ™‚

  27. I think the only baking arena in which you and I differ is that I can be over-peanut-buttered, and I don’t think you can ;)…but this still looks delicious! It makes me want to like peanut butter more than I do, if that makes sense! Haha. However…the recipe variation that entered my head is BISCOFF FUDGE!!! P.S. I love the peanut-butter cups you put in the photographs. They add such nice splashes of color! πŸ˜€

    1. Caley! Yes, this would be great with Biscoff. I’ve never tried it before, so I can’t be 100% it would work. Maybe I will try that next. Seriously, we need to start brainstorming recipe ideas girl.

      1. That would be fun! πŸ™‚

    2. That was the first thing that entered my mind too lol!!!!

  28. Mallory @ Because I Like Chocolate says:

    I just scraped out the last of the pb jar this morning, so good! I definitely would not trust myself around this fudge either!

    1. The last of the PB jar is my favorite part. πŸ™‚

  29. Megan - The Emotional Baker says:

    Can’t wait to try this! Love how easy it is πŸ™‚

  30. Laura (Tutti Dolci) says:

    Oh I need this fudge in my life, love the add-ins!

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