Making your very own Sprinkle Surprise is simple if you follow these steps:

1. Preheat the Oven: Start by preheating your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
2. Cream Butter and Sugar: In a large mixing bowl, cream together the softened butter and granulated sugar until light and fluffy.
3. Add Eggs: Beat in the eggs one at a time, mixing well after each addition to ensure a smooth batter.
4. Combine Wet Ingredients: Stir in the whole milk and vanilla extract, mixing until well combined.
5. Mix Dry Ingredients: In another bowl, sift together the flour, baking powder, and salt.
6. Combine Mixtures: Gradually add the dry ingredients to the wet mixture, stirring until the batter is smooth and free of lumps.
7. Fold in Sprinkles: Gently fold in the colorful sprinkles, ensuring they are evenly distributed throughout the batter.
8. Pour into Pans: Divide the batter evenly between the prepared cake pans.
9. Bake: Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted in the center comes out clean.
10. Cool: Remove the cakes from the oven and let them cool in the pans for 15-20 minutes. Then, transfer them to a wire rack to cool completely.
11. Frost the Cake: Once the cakes are completely cool, place one layer on a serving platter. Spread a generous amount of frosting on top, then add the second layer. Frost the top and sides of the entire cake.
12. Decorate with Sprinkles: Finish by decorating the top and sides of the cake with additional colorful sprinkles for that festive touch.