Description

Homemade Funfetti Cake is a delightful treat filled with rainbow sprinkles and a rich buttercream frosting. It’s simple to prepare and perfect for birthdays or any celebration, delivering a burst of joy with every slice.

Ingredients

Scale

2 cups (248g) all-purpose flour
2 teaspoons baking powder
¾ teaspoon salt
1 cup (226g) unsalted butter, melted
1 ½ cups (300g) granulated sugar
4 large eggs
1 teaspoon vanilla extract
1 cup (237ml) buttermilk
1 cup (225g) rainbow sprinkles
1 cup (226g) unsalted butter, softened
4 cups (452g) powdered sugar
1 teaspoon (15 ml) vanilla extract
½ teaspoon salt
2–5 tablespoons (30-75ml) heavy whipping cream
½ cup (112g) sprinkles plus more for topping

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Instructions

Preheat the oven to 350°F and grease a 9×13-inch baking pan.
In a medium bowl, whisk together flour, baking powder, and salt. Set aside.
In a large bowl, mix melted butter and granulated sugar using a hand or stand mixer until smooth. Add eggs one at a time, followed by the vanilla extract.
Alternately add the buttermilk and dry ingredients to the mixture, starting and ending with the buttermilk. Mix until combined, scraping the bowl as needed. Stir in rainbow sprinkles.
Pour the batter into the prepared baking pan. Bake for 30-40 minutes, or until a toothpick comes out clean. Allow the cake to cool completely before frosting.
To prepare the frosting, beat softened butter until creamy. Gradually add powdered sugar until a crumbly texture forms. Mix in vanilla and salt, then add 2 tablespoons of heavy cream. Adjust the consistency with more cream if needed and stir in sprinkles.
Frost the cooled cake and adorn with additional sprinkles, preferably using an offset spatula. Store the cake loosely covered for up to 2 days.
This recipe can also be used to make 24 cupcakes or two 9-inch rounds.

Notes

Ensure all ingredients are at room temperature for the best results.
For a more vibrant frosting, add an extra splash of colorful sprinkles.
This cake can be stored in an airtight container for up to a week.

Nutrition

Serving Size: 1 slice
Calories: 350
Sugar: 27g
Sodium: 200mg
Fat: 18g
Saturated Fat: 10g
Unsaturated Fat: 8g
Trans Fat: 0g
Carbohydrates: 42g
Fiber: 1g
Protein: 4g
Cholesterol: 70mg