Lucky Charms Marshmallow Cake - 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
• 1 ½ tsp baking soda
• 1 ½ tsp salt
• 1 ¾ cups buttermilk
• pink (blue and yellow food colouring)
• 3 cups unsalted butter (room temperature)
• 7 cups confectioner’s sugar
• 2 cups lucky charms marshmallows
• ½ cup lucky charms cereal