This vanilla sheet cake recipe uses the reverse creaming method, an easy technique that promises a uniquely soft and springy crumb with the most delicious buttery vanilla flavor. Each ingredient serves a purpose and for best results, I don’t recommend making substitutions.
- 3 cups (345g) cake flour (spoon & leveled)
- 1 and 1/2 cups (300g) granulated sugar
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1 cup (2 sticks; 230g) unsalted butter, cubed and softened to room temperature
- 1 Tablespoon pure vanilla extract
- 1 cup (240ml) whole milk, at room temperature and divided
- 1/3 cup (80g) sour cream, at room temperature
- 3 large eggs, at room temperature
Whipped Vanilla Buttercream
- 1 cup (230g) unsalted butter, softened to room temperature
- 4 and 1/2 cups (540g) confectioners’ sugar
- 1/3 cup (80ml) heavy cream
- 2 teaspoons pure vanilla extract
- salt, to taste
- optional: sprinkles for garnish
- Make the cake: Preheat the oven to 350°F (177°C). Generously grease a 9×13 inch cake pan.
- Sift the cake flour, sugar, baking powder, baking soda, and salt in the bowl of a stand mixer. (Or if using a handheld mixer, any large mixing bowl.) With the paddle attachment, beat the ingredients together on low speed for a few seconds to gently combine. Add the butter, vanilla, and 1/2 cup of milk. Mix on medium speed until the dry ingredients are moistened, about 1 minute. Stop the mixer and scrape down the sides and up the bottom of the bowl. The mixture will resemble a thick dough.
- Whisk the remaining milk, the sour cream, and eggs together in a medium bowl. With the mixer running on medium speed, add the egg mixture in 3 additions, mixing for about 15 seconds after each addition. Stop the mixer and scrape down the sides and up the bottom of the bowl, then mix for about 15 more seconds until batter is completely combined. Avoid over-mixing. Some small lumps are OK.
- Pour and spread batter evenly into prepared pan. Bake for around 32-35 minutes or until the cake is baked through. Begin checking doneness at 28 minutes. To test for doneness, insert a toothpick into the center of the cake. If it comes out clean, it’s done. Allow cake to cool completely in the pan set on a wire rack. The cake must be completely cool before frosting.
- Make the buttercream: With a handheld or stand mixer fitted with a paddle attachment, beat the butter on medium speed until creamy, about 2 minutes. Add confectioners’ sugar, heavy cream, and vanilla extract. Beat on low speed for 30 seconds, then increase to medium-high speed and beat for 4 full minutes. Add up to 1/4 cup more confectioners’ sugar if frosting is too thin or another Tablespoon of cream if frosting is too thick. Add a pinch of salt if frosting is too sweet. (I add 1/8 teaspoon salt.) Frosting should be extra fluffy.
- Spread frosting in a thick layer on cooled cake. I use and recommend an offset spatula. If desired, use a piping tip to pipe some frosting and/or garnish with sprinkles. Slice and serve.
- Cover leftover cake tightly and store in the refrigerator for up to 5 days.
- Make Ahead & Freezing Instructions: The cake can be baked, cooled, and covered tightly at room temperature overnight. Likewise, the frosting can be prepared then covered and refrigerated overnight. Let the refrigerated frosting sit at room temperature for 10 minutes, then beat with a mixer for 1 minute to bring it back to a spreadable consistency. Frosted cake or unfrosted cake can be frozen up to 2-3 months. Thaw overnight in the refrigerator and bring to room temperature before decorating/serving.
- Cupcakes: Fill cupcake liners 2/3 full. Bake at 350°F (177°C) for 19-21 minutes. Yields about 2 dozen. Or try my vanilla cupcakes recipe.
- 2 Layer Cake: If desired, you can divide the batter between two 9 inch cake pans. Bake time will be a few minutes shorter– keep a close eye on the cakes at 20 minutes and check for doneness with a toothpick.
- Cake Flour: For the best results, I strongly recommend cake flour. You can find it in the baking aisle and I have many more recipes using it. If you cannot get your hands on cake flour, you can make a DIY cake flour substitute.
- Why is everything at room temperature? All refrigerated items should be at room temperature so the batter mixes together easily and evenly. Read here for more information.
- Sprinkle Cake: To make a sprinkle cake, fold about 2/3 cup (105g) of sprinkles into the cake batter. Avoid nonpareils (the little balls), which tend to bleed their color.
- Chocolate Frosting: If desired, swap the whipped vanilla buttercream with chocolate buttercream. The chocolate buttercream calls for beating for 1 minute, but for a fluffy whipped texture, whip for 3 full minutes.
- Special Tools: Metal 9×13-inch Cake Pan, Glass 9×13-inch Cake Pan, KitchenAid Stand Mixer, Offset Spatula, Sieve
Keywords: vanilla, birthday, dessert