Vanilla Confetti Birthday Cake - Pankobunny

Ingredients

• 1 cup unsalted butter (room temperature)
• 3 cups all-purpose flour
• 1 tsp baking soda
• 1 tsp salt
• 2 cups sugar
• 6 large eggs (room temperature)
• 1 ¼ cups sour cream
• 2 tsp vanilla extract
• 1 cup confetti sprinkles
• 2 cups unsalted butter (room temperature)
• 1 tsp vanilla extract
• 5 cups confectioner’s sugar
• 3 cups confetti sprinkles