Elevate your cupcake game by adding a surprise Gulab Jamun filling. Prepare a basic cupcake batter and fill each cupcake liner halfway. Place a small Gulab Jamun in the center of each cupcake and cover it with more batter until the liner is about ¾ full. Bake the cupcakes until they are cooked through and golden. Once cooled, frost the cupcakes with a creamy frosting of your choice. When you take a bite, you'll be greeted with a delicious Gulab Jamun surprise in the center.