Hedwig Owl Cake from Harry Potter - Pankobunny

Ingredients

• 1 ½ cups unsalted butter (room temperature)
• 3 cups sugar
• 9 eggs (room temperature)
• 1 ½ tsp vanilla extract
• 4 ½ cups all-purpose flour
• ½ cup cocoa powder
• 1 ½ tsp baking soda
• 1 ½ tsp salt
• 1 ¾ cups buttermilk
• 3 cups unsalted butter (room temperature)
• 7 cups confectioner’s sugar
• black and yellow food colouring
• 2 cups white candy melts (melted)
• 1 cup black candy melts (melted)