American · Desserts

Vanilla birthday cake

Name: Vanilla birthday cake
Prep time: 50 min
Cook time: 30 min
Total time: 3 h 5 min
Yield: 12 slices
Cuisine: American
Ingredients: 2 3/4 cups (330 grams) cake flour; 1 2/3 cups (333 grams) granulated sugar; 2 teaspoons baking powder; 1/2 teaspoon baking soda; 1 teaspoon fine sea salt; 3/4 cup (170 grams) unsalted butter, softened; 1/4 cup (50 grams) neutral oil; 1 cup (240 grams) buttermilk, room temperature, divided; 2 large eggs plus 2 large egg whites, room temperature; 1 tablespoon vanilla extract; 1 cup (226 grams) unsalted butter, softened, for frosting; 3 1/2 cups (420 grams) confectioners' sugar; 3/4 cup (64 grams) Dutch-process cocoa powder; 1/2 cup (120 grams) heavy cream, as needed; Pinch of fine sea salt, for frosting; 1/3 cup rainbow sprinkles

A tall two-layer vanilla cake with a fine soft crumb, fluffy chocolate frosting, and cheerful sprinkles.

About 3 hr 5 minTotal

About 1 hr 20 minActive

$$Cost

AdvancedDifficulty

Makes 12 slices

Equipment

Use two matching light-colored 9-inch rounds; mixed pan materials can bake unevenly.
Best layer-cake starting point
Nordic Ware Naturals 9-Inch Round Cake Pans, Set of 2 · 46904AMZ
View at Amazon
Another workable path: Use two matching light-colored 9-inch rounds; mixed pan materials can bake unevenly.
Paid links. As an Amazon Associate, Kwilt earns from qualifying purchases.
How we chose
Research-backed · reviewed Aug 2026
We matched the required pair, exact nine-inch footprint, uncoated aluminum construction, model 46904AMZ, manufacturer UPC, heat behavior, care burden, and exact Amazon identity. Kwilt has not baked with these pans.
Nordic Ware Naturals 9-Inch Round Cake Pans, Set of 2 · 46904AMZ: The two-pan set matches the recipes' simultaneous layer bake, while uncoated aluminum conducts heat evenly without the dark finish that can overbrown delicate cake edges. Trade-off: Uncoated aluminum needs hand washing and can mark over time; grease and parchment the pans exactly as the recipe directs for clean release.
Another workable path: Use two matching light-colored 9-inch round pans with the same depth; mismatched materials can produce uneven bake times and different browning.
Sources
Nordic Ware 9-inch round pan specifications
Nordic Ware model and UPC registry
Amazon exact product listing

Ingredients

1× recipe · Makes 12 slices

2 3/4 cups (330 grams) cake flour
1 2/3 cups (333 grams) granulated sugar
2 teaspoons baking powder
1/2 teaspoon baking soda
1 teaspoon fine sea salt
3/4 cup (170 grams) unsalted butter, softened
1/4 cup (50 grams) neutral oil
1 cup (240 grams) buttermilk, room temperature, divided
2 large eggs plus 2 large egg whites, room temperature
1 tablespoon vanilla extract
1 cup (226 grams) unsalted butter, softened, for frosting
3 1/2 cups (420 grams) confectioners' sugar
3/4 cup (64 grams) Dutch-process cocoa powder
1/2 cup (120 grams) heavy cream, as needed
Pinch of fine sea salt, for frosting
1/3 cup rainbow sprinkles

Instructions

Heat oven to 350°F. Grease , line bottoms with parchment, and grease again. In a mixer bowl combine cake flour, sugar, baking powder, baking soda, and 1 teaspoon salt. Beat in the 3/4 cup butter and oil on low until the mixture resembles damp sand.
Add 3/4 cup buttermilk and beat 90 seconds on medium. Whisk remaining 1/4 cup buttermilk with eggs, whites, and vanilla; add in three portions on low, scraping well. Divide evenly and bake 25 to 32 minutes until lightly golden and springy with moist crumbs. Cool fully.
Beat the 1 cup butter until creamy. On low add confectioners' sugar, cocoa, and the pinch of salt, then enough cream for a soft spreadable frosting. Beat 2 minutes until fluffy. Level cake domes only if necessary.
Fill, stack, crumb-coat, and chill the cake 20 minutes. Finish the top and sides with remaining frosting and press sprinkles around the edge or scatter over the top. This is the batch's one true project: two-layer reverse-creamed cake, frosting, leveling, stacking, coating, chilling, and decorating form one celebration bake.
Let stand 20 minutes before cutting. Keep covered at cool room temperature for 2 days or refrigerate longer, returning to room temperature before serving. For a simpler birthday, bake the same batter in a 9-by-13-inch pan for about 35 minutes and spread frosting only on top.

United StatesAmerican baking and dessert traditions

From the table

About this recipe

The frosted layer cake became an American birthday ritual as refined flour, baking powder, household ovens, and packaged decorations made tall celebration cakes practical in home kitchens.

A vanilla birthday cake has nowhere for dry crumb or weak flavor to hide. Reverse creaming coats flour with fat before liquid is added, limiting gluten and producing an even fine crumb sturdy enough to stack. Oil preserves softness, a full tablespoon of vanilla makes the flavor intentional, and chocolate frosting plus sprinkles delivers the familiar American birthday contrast without fondant. This Kwilt version follows the reviewed household adaptation: Use the strongest large-review reverse-creamed birthday architecture, preserve the nostalgic chocolate-and-sprinkle finish, and include a sheet-cake exit ramp while honestly labeling the layered version as the batch project.

Sources

Dinner does not stop at the recipe