Double chocolate mini cupcakes

Ingredients

Cake: cane sugar, buttermilk (cultured lowfat milk, nonfat milk solids, salt), canola oil, water, white rice flour, eggs, potato starch, cocoa, tapioca flour, baking soda, baking powder (sodium acid pyrophosphate, sodium bicarbonate, cornstarch, monocalcium phosphate), xanthan gum, salt, vanilla extract (water, ethyl alcohol, vanilla bean extractives), coffee. frosting: powdered sugar (sugar, cornstarch), unsalted butter (cream), cream, cocoa, vanilla extract (water, ethyl alcohol, vanilla bean extractives), salt.