Notes: Tossing the blueberries in flour will prevent them from sinking to the bottom of the cake during baking.
Notes: For more even baking and to prevent dark edges, you can wrap the outside of your pans with damp fabric cake strips.
Notes: The frozen blueberries will be used for decoration later.
Notes: Ensure your butter is at room temperature for a smooth, fluffy buttercream.
Notes: For a 'naked' cake look, use less frosting on the sides and scrape them with an offset spatula.