If baking the donuts, preheat oven to 350°F (177°C). Line a baking sheet with parchment paper.
If cooking the donuts in the air fryer, line the air fryer insert basket with parchment paper.
Blend cottage cheese in a small high powered blender until smooth.
Add blended cottage cheese, 1 cup flour, powdered sugar, lemon juice and lemon zest to large mixing bowl and mix until a dough forms.
If the dough seems too sticky to work with, add the remaining flour, 1 tablespoon at a time.
Use a 1.5 tbsp cookie scoop to scoop dough. Lightly wet your hands and roll each dough into a loose ball and place onto your prepared baking sheet, spacing them about 2 inches apart.
Air fryer instructions: Preheat air fryer to 350°F (177°C) and then cook the donuts for about 10 minutes or until puffed and golden brown on the surface and cooked through.
Oven instructions: Bake for about 20 minutes in preheated oven or until the donuts are cooked through, puffed and golden brown on the surface.
Allow the donuts to cool for a few minutes before enjoying.
