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Dessert, Kid-Friendly

Rainbow Sprinkle Cake with Buttercream Frosting

Ninja Test Kitchen
Recipe by Ninja Test Kitchen

Tip: Cooking Mode

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  • Prep 10 mins
  • Total 40 mins
  • Easy
  • Serves 7

TIP: Don’t have sour cream? Substitute equal parts plain Greek yogurt.

TIP: Using a baking sheet is optional but helps with easy transfer to the oven.

Compatible with

Allergies

  • Contains Wheat
  • Contains Milk/Dairy
  • Contains Eggs

Tip: Allergy Advice

This dish contains the following allergens: Wheat, Milk/Dairy, Eggs

Cooking mode

Step-by-step instruction without your screen going to sleep

  • Nonstick cooking spray
  • 1 cup all-purpose flour
  • 3/4 cup granulated sugar
  • 2 teaspoons baking powder
  • 1/8 teaspoon kosher salt
  • 1 large egg
  • 1/2 cup buttermilk
  • 1/3 cup sour cream
  • 1/4 cup canola oil
  • 2 teaspoons vanilla extract
  • 1/2 cup rainbow sprinkles

FROSTING

  • 1/2 cup unsalted butter, softened
  • 2 teaspoons vanilla extract
  • 1/8 teaspoon salt
  • 2 cups confectioner’s sugar
  • 1/3 cup rainbow sprinkles

Utensils

  • Small Bowl
  • Whisk
  • 2 Large Bowls
  • Step 1

    Preheat oven to 350°F. Lightly spray the Ninja™ Foodi™ NeverStick™ Premium 9” Round Cake Pan with nonstick cooking spray and line with 9-inch parchment round. Set cake pan over baking sheet. Set aside.

  • Step 2

    In a large bowl, whisk to combine flour, sugar, baking powder, and salt.

  • Step 3

    In a separate small bowl, add the egg, buttermilk, sour cream, oil, and vanilla, and whisk until fully combined.

  • Step 4

    Add the wet mixture to the dry mixture and gently fold together until just combined and some lumps remain. Fold in the sprinkles, making sure not to overmix.

  • Step 5

    Transfer batter to prepared pan and spread top into an even layer.

  • Step 6

    Transfer pan to oven and bake for 25 to 30 minutes, or until cake is set and a toothpick inserted in the center comes out clean or with few crumbs.

  • Step 7

    When cooking is complete, allow pan to cool on wire cooling rack.

  • Step 8

    Meanwhile, prepare the frosting. In a large bowl, add all frosting ingredients except sprinkles. Using an electric mixer, beat frosting until smooth and fluffy, about 3 minutes.

  • Step 9

    When cake is cool, carefully remove from pan. Ice cake and top with additional sprinkles as desired. Slice and serve.

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