Indulge in some homemade cinnamon sugar donuts made in an air fryer. Mix together flour, sugar, baking powder, cinnamon, and salt, then add milk, melted butter, and vanilla extract to form a dough. Roll the dough into small balls, place them in the air fryer basket, and cook until golden brown. While still warm, toss the donuts in a mixture of cinnamon and sugar. The air fryer gives the donuts a crispy exterior while keeping the inside soft and fluffy. These cinnamon sugar donuts are a surprising and delightful treat.
