Preheat the oven to 350°F. Grease 3 (8-inch) round cake pans with butter or shortening and set them aside. prep

In a medium bowl, whisk together the cake flour, baking powder, and salt. mix

In a large bowl, cream together the unsalted butter and white sugar with an electric mixer until light and fluffy. mix

Add the eggs one at a time, mixing thoroughly after each addition. Be careful not to over-mix. mix

Stir in the vanilla extract and pink gel food coloring. Then, alternate adding half of the dry mixture and half of the buttermilk, mixing until just combined. It's okay if lumps remain. mix

Divide the batter evenly between the three prepared cake pans. Smooth the batter out. bake

Bake for 20 minutes, or until a toothpick inserted into the center comes out clean. Rest for 10 minutes, then remove cakes from pans and allow them to cool completely. bake

To make the frosting, blend the butter and cream cheese in a large bowl with an electric mixer until smooth. Gradually add the powdered sugar, mixing until thick and creamy. Add vanilla extract and mix until incorporated. mix

To assemble, place one layer of the cake on a serving plate. Spread ¼ inch of frosting evenly over the top. Add the second layer, frost it, then add the third layer and frost the top and sides of the cake. assemble

Decorate with pink sprinkles, if desired, and serve. finish