Ingredients for vanilla cake with chocolate frosting: For cake: . 2 cups all-purpose flour . 1 tsp baking powder . 1/4 tsp salt . 1 cup butter . 1 1/2 cups granulated sugar . 3 eggs . 2 tsp vanilla extract . 1 cup whole milk For frosting: . 1 1/2 cups butter, softened . 3 cups powdered sugar . 3/4 cup cocoa powder . 2 tbsp whole milk . 1 tsp vanilla extract How many different ingredients will you need for the cake and frosting