Leftover Dosa Batter Mix Appe is a delicious and easy-to-make snack made from leftover dosa batter. It is a popular South Indian dish that is crispy on the outside and soft on the inside. The batter is mixed with a variety of vegetables and spices, then cooked in a special appe pan to give it a unique shape. It is a perfect tea-time snack or breakfast option that can be enjoyed with chutney or sambar.