For a chocolate twist on the classic Funfetti cake, use a food processor to combine flour, sugar, cocoa powder, baking powder, and salt. Add in butter, eggs, vanilla extract, and milk, and pulse until the batter is smooth. Fold in rainbow sprinkles and chocolate chips, then bake in a preheated oven for 25-30 minutes. Let cool before frosting with a chocolate buttercream made with cocoa powder and powdered sugar.
