Set air-frier oven to 400F (or 375F if it’s a compact air fryer).
In a bowl, mix together flours, baking powder and salt with a fork.
Add Greek yogurt and vanilla to the bowl and mix together to form a sticky dough. If needed, add teaspoons of almond flour if it is too thick and sticky.
Lightly dust the counter, table or cutting board with flour, then add the dough. Kneed the dough – repeatedly flattening and folding it – until is no longer sticky.
Equally divide the batter into 10 round pieces and roll the pieces into a ball. Add them to the air-fryer basket. If you are using a smaller air-fryer then you’ll need to do this in batches.
Lightly spray the balls with avocado oil, then bake in the oven for 8 to 10 minutes, watching as the top and outer edges turn golden brown. Be careful not to overcook these, it’s ok if they look slightly undercooked. As they cool out of the oven, they will firm up, but we want them “pillowy.”
Garnish with powdered sweetener and enjoy with a cup of coffee or green tea!