Surprise American Flag Cake - Pankobunny

Ingredients

• 2 cups unsalted butter (room temperature)
• 6 cups all-purpose flour
• 2 tsp baking soda
• 2 tsp salt
• 4 cups sugar
• 12 eggs (room temperature)
• 2 1/2 cups sour cream
• 2 tsp vanilla extract
• red and blue food colouring
• 1 tsp vanilla extract
• 5 cups confectioner’s sugar
• Red (white and blue sprinkles)