3 raspberry chocolate buttercream cupcakes Recipes

vanilla cake mix, water, vegetable oil, eggs, fresh raspberries, water, white sugar, cornstarch, water, white chocolate chips, butter, sugar, milk , or as needed

unsalted butter, room temperature, plus more for pan, all-purpose flour (spooned and leveled), plus more for pan, baking powder, salt, sugar, eggs, room temperature, pure vanilla extract, whole milk, vanilla , raspberry, or chocolate buttercream