Rainbow Bundt Cake

This rainbow Bundt cake recipe is fun and easy to make, using a white cake mix, vanilla pudding mix, sour cream, food coloring, and festive sprinkles.

• Preparation Time: 30 mins
• Cooking Time: 35 mins
• Total Time: 1 hr 5 mins
• Calories: 496 Calories

Ingredients

• 1 cup sour cream
• 1 teaspoon white sugar
• 1 (16 ounce) package prepared chocolate frosting
• 4 eggs, lightly beaten
• 2 tablespoons all-purpose flour, or as needed
• 1 package white cake mix
• 1 (1 ounce) package instant vanilla pudding mix
• 1 drop red paste food coloring, or as needed
• 1 drop purple gel food coloring, or as needed
• 1 drop blue paste food coloring, or as needed
• 1 drop green paste food coloring, or as needed
• 1 drop yellow paste food coloring, or as needed
• 1 drop orange paste food coloring, or as needed
• 0.5 cup butter, melted
• 0.5 cup water
• 0.25 cup rainbow sprinkles, or as needed

Recipe Instructions

Step 1

Preheat the oven to 350 degrees F (175 degrees C) with rack in center position. Grease and flour a 10-cup fluted tube pan (such as Bundt).

Step 2

Combine cake mix, sour cream, eggs, butter, water, pudding mix, and sugar in a large bowl. Beat with an electric mixer on low speed until ingredients are moistened, then beat on medium-high speed for 1 minute. Batter will be thick.

Step 3

Evenly divide batter among 6 small bowls; tint each batch a different color, using enough food coloring paste to reach desired tone, colors will deepen and brighten when baked.

Step 4

Spoon red batter into bottom of the prepared pan and smooth using an offset spatula to evenly distribute. Carefully spoon purple batter on top and spread with spatula, pressing batter thinner near the inner edge and thicker at the outer edge of the pan to create an arc effect. Repeat with blue, green, yellow, and orange batters. Gently tap the pan on the counter 3 times to allow batter to settle.

Step 5

Bake in the preheated oven until a toothpick inserted into center comes out clean and top is just starting to brown, 35 to 45 minutes. Be careful not to overbake.

Step 6

Cool cake in the pan for 10 minutes. Turn cake out onto a serving plate; cool completely, about 1 hour.

Step 7

Drizzle or spread frosting over cooled cake; decorate with rainbow sprinkles.