Step 7: Combine cake
Use a serrated knife to trim the domed tops of fully cooled cakes to create a flat surface. If you try to frost a warm cake, the frosting will slide off so patience is key. Place one cake, cut-side up, on a cake stand or serving plate. Use an offset spatula to frost the top of the cake. Top with second cake, cut-side down. Frost sides and top of cakes. Decorate with sprinkles, fresh fruit, coconut or whatever you can dream up.