Small-Batch Funfetti Cake (6-inches)

This small-batch Funfetti cake is tender and light. It’s baked in two 6-inch pans, which makes just the right amount for a birthday or small celebration without having heaps of leftovers. The crumb is fine and velvety thanks to a reverse creaming method, and the balance of butter and oil keeps the cake rich but still moist.

A close-up of a funfetti layer cake with white frosting and colorful sprinkles, its moist, sprinkle-filled interior revealed by a large missing slice. Nearby, Puff Pastry Cinnamon Twists add an extra touch of sweetness to the scene.

About this cake

I love the mini size of this cake. A 6-inch layer cake still feels super special, but it’s not as intimidating as a big 9-inch party cake.

I use a reverse creaming method here, which is when you mix butter into the flour first, instead of creaming it with sugar. The butter coats all the flour granules, which halts their gluten development and keeps the cake really tender. Though butter is the main fat, I add a little oil too so that the cake doesn’t dry out over the following days.

A peek at some key ingredients


  • Cake flour: This has a low protein content for a soft crumb. If you don’t have it, you can use a mix of all-purpose flour and cornstarch.
  • Sugar: Regular granulated sugar gives sweetness and structure.
  • Fats: Butter for flavor and oil for moisture.
  • Eggs: a mix of whole egg and an extra egg white.
  • Dairy: both milk and yogurt, to add moisture and tang.
  • Sprinkles: use rainbow jimmies, because these won’t bleed all their color into the batter.

Method

  1. Add the dry ingredients into a stand mixer bowl fitted with a paddle attachment.
A close-up of a hand holding a small pile of crumbly, pale yellow dough mixture above a metal mixing bowl, with a stand mixer in the background.
  1. Add butter and mix until the mixture looks like damp sand.
Close-up of thick, creamy cookie dough being mixed in a metal stand mixer bowl with a white paddle attachment.
  1. Add in most of the yogurt, milk and oil until it makes a super thick batter.
A close-up of a hand mixing eggs and batter with a fork in a glass bowl, creating a swirled yellow and creamy mixture.
  1. Add the eggs to the remaining dairy mix.
Close-up of yellow cake batter being mixed in a stand mixer, with the paddle attachment partially visible.
  1. Add to the batter and mix until smooth.
Cake batter in a mixing bowl with colorful rainbow sprinkles being stirred in, creating a funfetti effect—perfect for pairing with Puff Pastry Cinnamon Twists for a festive treat.
  1. Stir through the sprinkles, then divide over two 6-inch cake pans.
Two round funfetti cake layers with colorful sprinkles are cooling on a metal wire rack over a brown surface.
  1. Bake, and let cool completely.
A hand uses an offset spatula to spread frosting on top of a two-layer funfetti cake, set on a white cake stand against a tiled background, with Puff Pastry Cinnamon Twists nearby for a sweet finishing touch.
  1. Spread with icing.
A frosted layer cake decorated with colorful sprinkles and topped with two lit candles sits on a white cake stand, while Puff Pastry Cinnamon Twists add a delightful touch against the tiled background.
  1. Decorate how you like!

The frosting

You can finish this cake with any frosting you like. It goes well with cream cheese frosting, Swiss meringue buttercream or a classic American buttercream which is what I have used. 

I like to add toasted milk powder to my buttercream. It gives a deep, malty, almost caramelized flavor to make it taste extra amazing.

FAQS

Why do you split the liquid additions?

Adding half the dairy and oil first turns the sandy mixture into a paste, which acts as a base for the emulsion. The eggs go in with the rest of the liquid, which stops them from hitting dry flour and toughening the crumb. This step is crucial for maintaining the cake’s smooth and tender texture.


Why does the cake use both butter and oil?

Butter brings flavor and structure, while oil adds lasting moisture. The ratio here is 3:1, so you get that buttery taste but still a soft bite even after the cake has chilled.


Can I use only egg whites to make it whiter?

Yes you can, but the cake will be drier and less flavorful. Using a mix of whole egg and egg white keeps the crumb pretty pale while still adding a little richness from the yolk.

A slice of funfetti cake with white frosting and rainbow sprinkles sits on a white decorative plate next to a silver fork, accompanied by flaky Puff Pastry Cinnamon Twists for a delightful treat.

More mini cake and funfetti recipes

A slice of funfetti cake with white frosting and colorful sprinkles sits on a white plate, next to flaky Puff Pastry Cinnamon Twists. The cake has two layers with rainbow sprinkles baked inside.

Small-Batch Funfetti Cake

This small-batch Funfetti cake is tender and light. It’s baked in two 6-inch pans, which makes just the right amount for a small celebration without having heaps of leftovers.
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Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Course Cakes
Cuisine American
Servings 8 people
Calories 635 kcal

Ingredients
 
 

Funfetti cake

  • 160 g cake flour
  • 150 g granulated sugar
  • 1 ¼ tsp baking powder
  • ¼ tsp baking soda
  • ½ tsp salt
  • 90 g unsalted butter cool room temperature, not soft
  • 80 g milk
  • 50 g greek yogurt full fat, or sour cream
  • 25 g oil neutral
  • 1 large egg
  • 1 large egg white
  • 1 tsp vanilla extract or paste
  • 1/4 tsp almond extract optional
  • 40 g rainbow jimmies

Frosting

  • 45 g heavy cream
  • 1 Tbsp toasted milk powder
  • 170 g unsalted butter softened
  • 340 g powdered sugar sifted
  • ¾ teaspoon vanilla extract
  • pinch of salt

Instructions
 

  • Preheat the oven to 170°C (325°F). Grease two 6-inch round cake pans and line the bottoms with parchment.
  • In the bowl of a stand mixer, add the cake flour, sugar, baking powder, baking soda, and salt. Mix briefly to combine. 160 g cake flour, 150 g granulated sugar, 1 ¼ tsp baking powder, ¼ tsp baking soda, ½ tsp salt
  • Add the butter to the dry mixture. Beat on low-medium speed until the mixture looks like damp sand with no large butter pieces visible. 90 g unsalted butter
  • In a small jug, whisk together the milk, yogurt, and oil. Pour in 3/4 of this mixture and mix on low speed for 30–45 seconds, until a thick paste forms. 80 g milk, 50 g greek yogurt, 25 g oil
  • While it’s mixing, whisk the whole egg, egg white, vanilla, and almond extract into the remaining milk mixture. Slowly stream this into the batter while mixing on medium speed. Beat for 45–60 seconds, scraping down the bowl halfway, until the batter is smooth, glossy, and free of lumps. If you have one, you can use an immersion blender and give the batter a few blasts to make it extra smooth. 1 large egg, 1 large egg white, 1 tsp vanilla extract, 1/4 tsp almond extract
  • Fold in the sprinkles gently with a spatula, being careful not to overmix so the colors do not bleed. 40 g rainbow jimmies
  • Divide the batter evenly between the two prepared pans. Bake for 30 minutes, or until the cakes are golden and a toothpick inserted in the center comes out with a few moist crumbs.
  • Let the cakes cool in the pans for 10 minutes, then turn them out onto a wire rack to cool completely before frosting.

Frosting

  • Whisk the toasted milk powder into the heavy cream. Set aside.45 g heavy cream, 1 Tbsp toasted milk powder
  • Place the softened butter in the bowl of a stand mixer fitted with the paddle attachment. Beat on medium speed for 2–3 minutes, until pale and creamy. 170 g unsalted butter
  • Add the powdered sugar gradually, mixing on low speed until it is incorporated. Scrape down the bowl, then increase to medium speed and beat for 2 minutes until fluffy. 340 g powdered sugar
  • Pour in the cream and milk powder mixture along with the vanilla and salt. Beat on medium-high speed for 3–4 minutes, until the buttercream is smooth, light, and spreadable. ¾ teaspoon vanilla extract, pinch of salt
  • Whip at low speed to combine fully, then increase to high speed and beat for 5–8 minutes. The longer you beat, the fluffier the frosting will be. If the frosting seems too stiff, add a splash more cream. If it seems too soft, add a spoonful of powdered sugar.
  • To assemble the cake, place one cooled cake layer on a turntable or cake stand. Spread a layer of frosting over the top, then place the second cake layer upside down on top for a smooth, flat surface.
  • Spread a thin layer of frosting around the whole cake to create a crumb coat. Smooth with a bench scraper and chill the cake for about 20 minutes until the frosting has set.
  • Add a thicker layer of frosting over the cake, smoothing it with a bench scraper. If you like, use a serrated bench scraper to add decorative lines or patterns around the sides.
  • This batch is enough to fill and frost a 6-inch double-layer cake generously.

Notes

To make your own cake flour, measure out 160g of all-purpose flour, then remove 2 tablespoons. Add in two tablespoons of cornstarch and mix well. Sift well, at least twice, before using. 

Nutrition

Serving: 1sliceCalories: 635kcalCarbohydrates: 82gProtein: 5gFat: 33gSaturated Fat: 19gPolyunsaturated Fat: 2gMonounsaturated Fat: 10gTrans Fat: 1gCholesterol: 101mgSodium: 274mgPotassium: 75mgFiber: 0.5gSugar: 66gVitamin A: 945IUVitamin C: 0.03mgCalcium: 75mgIron: 0.4mg
Keyword 6-inch cake, Funfetti
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