Co-op's Own Small Chocolate Peanut Butter Cake

P. FLOUR, SUGAR, UNSALTED BUTTER, BUTTERMILK, COCOA, EGG, BAKING SODA, VANILLA, SEA SALT, FROSTING: POWDERED SUGAR, PEANUT BUTTER, CREAM, UNSALTED BUTTER, VANILLA.-----ALLERGENS: EGG, MILK, PEANUTS, WHEAT