This marble cupcake recipe is perfect for anyone who wants to make individual and delicious desserts. These cupcakes are made with all-purpose flour, baking powder, salt, unsalted butter, granulated sugar, eggs, vanilla extract, milk, and cocoa powder. The cupcake batter is divided into two parts, and one part is mixed with cocoa powder to create the chocolate batter. The two batters are then swirled together and baked in cupcake liners to create a beautiful swirl pattern. These cupcakes are moist, tender, and have a delicious chocolate and vanilla flavor. They're perfect for any occasion and are sure to be a hit with everyone.