Soft and Fluffy Vanilla Sprinkle Cake
This vanilla sprinkle cake is a tender, colorful sheet cake loaded with rainbow sprinkles and a creamy vanilla frosting.
It’s the kind of cake that makes any day feel like a celebration, and it’s simple enough to pull together on a weeknight.
Why This Vanilla Sprinkle Cake Works
The cake itself is soft and buttery with a fine crumb that stays moist for days. A generous amount of vanilla and a hint of almond extract give it that nostalgic bakery flavor you remember from childhood.
The rainbow sprinkles add pops of color and a tiny bit of crunch without turning the batter gray. I keep the frosting billowy and just sweet enough so every bite is balanced, not cloying.
Ingredients
- 2 1/2 cups all-purpose flour: spooned and leveled, not scooped
- 2 1/2 tsp baking powder: gives the cake its lift
- 1/2 tsp fine sea salt: rounds out the sweetness
- 1 cup (2 sticks) unsalted butter, softened: brings all the richness
- 1 3/4 cups granulated sugar: for a tender crumb
- 4 large eggs, room temperature: helps the batter emulsify smoothly
- 2 tsp pure vanilla extract: the main flavor driver
- 1/4 tsp almond extract: adds that classic bakery depth
- 1 cup whole milk, room temperature: creates a moist crumb
- 1/2 cup rainbow jimmies (long sprinkles): the confetti; avoid nonpareils which bleed
- For the frosting: 1 cup (2 sticks) unsalted butter, softened, 3 cups powdered sugar, sifted, 2 tsp vanilla extract, a pinch of salt, 2 to 3 tbsp whole milk
Variations / Substitutions
- Dairy-free: use a stick-style plant butter, almond milk, and a pinch of salt in place of whole milk.
- Gluten-free: swap the flour for a 1:1 all-purpose gluten-free blend that contains xanthan gum.
- Sprinkle style: you can use a single color of jimmies or even chocolate jimmies for a different look; avoid sanding sugar or nonpareils in the batter.
- Frosting swap: a tangy cream cheese frosting works just as well; reduce the butter to 1/2 cup and add 8 oz cream cheese.
If you love this easy sheet cake, our lemon blueberry loaf is another simple, bright bake you’ll want in your rotation.
How To Make Vanilla Sprinkle Cake
Step 1: Cream the Butter and Sugar
In a large bowl, beat 1 cup softened unsalted butter and 1 3/4 cups granulated sugar with a hand mixer or stand mixer on medium speed until light and fluffy, about 3 to 5 minutes. Scrape down the sides and bottom of the bowl once, then add 4 large eggs one at a time, beating well after each.
The mixture will turn pale yellow and look almost whipped, and you’ll smell the butter’s natural sweetness start to bloom. If it looks curdled after adding eggs, keep mixing a little longer; it will come together.
Step 2: Alternate the Dry and Wet Ingredients
Whisk 2 1/2 cups all-purpose flour, 2 1/2 tsp baking powder, and 1/2 tsp fine sea salt in a separate bowl. In a measuring cup, combine 1 cup whole milk with 2 tsp vanilla extract and 1/4 tsp almond extract. With the mixer on low, add the flour mixture in three parts, alternating with the milk mixture in two parts, starting and ending with the flour. Mix just until the streaks of flour disappear after each addition, no longer than 15 seconds or so at a time.
The batter should be smooth but not overworked; you’ll see tiny bubbles on the surface. Overmixing at this stage can make the cake tough, so stop as soon as the last bit of dry flour vanishes.
Step 3: Fold in the Sprinkles and Bake
Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking pan, then line it with parchment paper leaving an overhang on two sides. Fold 1/2 cup rainbow jimmies into the batter with a spatula, using only a few strokes so the colors don’t streak. Pour the batter into the prepared pan and smooth the top. Bake on the middle rack for 25 to 30 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.
The top will be golden and the edges will just start pulling away from the pan. The cake should spring back lightly when you press the center. Let it cool in the pan for 10 minutes, then lift it out by the parchment and transfer to a rack to cool completely before frosting.
Step 4: Whip the Frosting
Beat 1 cup softened unsalted butter with a pinch of salt on medium speed until creamy, about 2 minutes. Add 3 cups sifted powdered sugar, 2 tsp vanilla extract, and 2 tbsp whole milk, then beat on low until combined. Increase speed to medium-high and whip for 2 to 3 minutes, scraping the bowl once, until the frosting is very pale and fluffy. If it feels too stiff, beat in the remaining 1 tbsp milk a little at a time.
Stop and taste; you want a clean vanilla finish with a hint of salt that cuts the sweetness. The frosting should hold its shape on a spoon but spread easily without tearing the cake.
Step 5: Frost and Slice the Cake
Once the cake is completely cool, spread the frosting over the top with an offset spatula, swirling it all the way to the edges. Scatter extra rainbow jimmies over the frosting right away so they stick. Slice into 12 squares and serve at room temperature.
The first slice reveals a pale, soft crumb dotted with bright sprinkles, and the frosting stays creamy against the cake. It’s a genuinely happy cake that looks as good as it tastes.
Tips for the Best Sprinkle Cake
- Use jimmies, not nonpareils or sanding sugar. Jimmies hold their color and shape, while the tiny ball sprinkles often bleed into the batter and leave muddy streaks.
- Bring all cold ingredients to room temperature. Cold eggs or milk can cause the butter to seize up and create a dense cake.
- Cool the cake completely before frosting. Even a hint of warmth will melt the butter in the frosting and turn it into a slippery mess.
- If you only have unsalted butter for the frosting, that’s fine. Just add a pinch of salt; it makes the sweetness pop and stops it from tasting flat.
Bake times for other pans:
| Pan Size | Bake Time |
|---|---|
| Two 8-inch round pans | 22 to 26 minutes |
| Two 9-inch round pans | 20 to 24 minutes |
| 24 standard cupcakes | 18 to 22 minutes |
Storing Leftover Sprinkle Cake
- Refrigerate: store the frosted cake, well covered, in the fridge for up to 4 days. The cold helps the frosting set firmer, but let slices sit at room temperature for 15 minutes before serving; the crumb relaxes and tastes freshly baked again.
Frequently Asked Questions
Can I use only vanilla extract and skip the almond?
Yes. The almond extract adds that iconic bakery note, but the cake is still lovely with just vanilla. If you skip it, use 3 tsp vanilla total.
Why did my cake sink in the middle?
Most likely the oven door was opened too early, or the cake was underbaked. The center needs to be fully set before you pull it out; a toothpick should come out with just a few moist crumbs.
Can I freeze the unfrosted cake?
Absolutely. Wrap the completely cooled cake tightly in plastic and freeze for up to 2 months. Thaw overnight in the fridge, then frost and serve.
How do I get clean slices without the frosting smearing?
Chill the frosted cake for 15 to 20 minutes before slicing, and wipe the knife between cuts. The frosting will hold its shape much better.
Vanilla Sprinkle Cake Recipe
Ingredients
Method
- Beat butter and sugar until light and fluffy, 3 to 5 minutes. Beat in eggs one at a time.
- Whisk flour, baking powder, and salt. Alternate adding dry ingredients and milk mixture to the butter mixture, starting and ending with dry. Mix until just combined.
- Fold in sprinkles, then pour into a prepared 9×13-inch pan. Bake at 350°F (175°C) for 25 to 30 minutes. Cool completely.
- Beat butter and salt for the frosting until creamy. Add powdered sugar, vanilla, and 2 tbsp milk, beating until fluffy. Add more milk if needed.
- Spread frosting over the cooled cake, top with extra sprinkles, and slice into 12 squares.
