Simple Truth® Gluten Free Double Chocolate Cake With Buttercream Frosting

Cake: Cane Sugar, Gluten-Free Flour Blend (White Rice Flour, Potato Starch, Tapioca Starch), Buttermilk (Cultured Low Fat Milk, Salt, Sodium Citrate), Water, Canola Oil, Eggs, Cocoa Powder Processed with Alkali, Baking Soda, Leavening (Sodium Acid Pyrophosphate, Sodium Bicarbonate, Corn Starch, Monocalcium Phosphate), Salt, Vanilla Extract (Water, Ethyl Alcohol, Bean Extractives), Coffee, Xanthan Gum, Enzymes. Frosting: Powdered Sugar, Heavy Cream (Cream [Milk]), Unsalted Butter (Cream, Natural Flavor), Cocoa Powder Processed with Alkali, Vanilla Extract (Water, Ethyl Alcohol, Vanilla Bean Extractives), Salt.