Take a bowl add egg, milk and melted butter and sugar powder. Mix well with spatula.

Add all-purpose flour,baking powder and salt mix it with spatula, make a smooth dough.

Apply butter and cover the dough with clin flim. Rest the dough for half an hour.

Take a dough give a quick mix and take a dough keep the grated cheddar cheese in middle cover it. Make uniform size balls. Transfer to preheated air fryer. Bake it for ten minutes. Tasty korean cheese ball is ready.