Peanut Butter Chocolate Cake

Name: Peanut Butter Chocolate Cake
Cuisine: American
Ingredients: White Cake Mix (divided into 3 equal parts); ½ cup chocolate cereal; 1 cup milk (separated into 3 parts); 3 egg (separated); ½ cup Peanut butter cereal; 1 cup Cinnamon cereal, save ½ for topping the cake; 1 lb Buttercream frosting, Store bought; ¼ cup chocolate cereal crumbs; ¼ cup peanut butter crumbs; ¼ cup cinnamon cereal crumbs; 10 oz White chocolate, melted; 1 teaspoon cinnamon