Instructions
Microwave milk until lukewarm.
Stir in a teaspoon of sugar and yeast, letting it sit until frothy.
Whisk flour and salt in a medium bowl.
In a large bowl, whisk remaining sugar, butter, egg, and vanilla.
Combine yeast mixture with wet ingredients, then stir in dry ingredients until a shaggy dough forms.
Knead dough on a floured surface until elastic.
Place dough in an oiled bowl, cover, and let rise in a warm spot until doubled.
Roll dough into a 0.5-inch thick rectangle and cut out doughnuts using a cutter.
Place doughnuts on a tray, cover, and let rise again.
Air fry at 375° for 6 minutes per batch until golden.
Dip in glazes or brush with butter and toss in cinnamon sugar, then rest for 5 minutes before serving.
Pro Tips
Ensure the milk is only lukewarm to avoid killing the yeast.
Add extra flour one teaspoon at a time if the dough is too tacky while kneading.
Letting the dough rise in a warm, draft-free spot is essential for light, airy donuts.
Do not overcrowd the air fryer basket to ensure even cooking.
Let the donuts rest for 5 minutes after glazing to allow the coating to set.