Ingredients
Method
- Preheat oven to 350°F. Grease two 8-inch pans. Whisk flour, baking powder, and salt. Beat butter and sugar until pale, 3 minutes.
- Add eggs one at a time, then vanilla. Alternate dry ingredients and buttermilk. Fold in sprinkles. Divide into pans and bake 23 to 26 minutes. Cool 10 minutes, then turn out onto a rack.
- Level cooled layers. Place one layer on a plate, spread about 3/4 cup buttercream on top, add second layer.
- Beat butter for frosting. Sift in powdered sugar, add vanilla and cream, whip 2 minutes. Tint blue. Crumb coat, chill 15 minutes, then frost fully.
- Melt candy melts. Spread a shark fin shape on parchment, let set. Pipe waves with remaining buttercream, press fin into top, scatter sprinkles.
Notes
The cake layers can be baked a day ahead, cooled, wrapped, and stored at room temperature before frosting. If the finished cake sits in the fridge overnight, let it come to room temperature for the best texture.
