In a mixing bowl, combine flour, baking powder and salt.

Add diced butter to flour mixture and with your hands. Massage the butter into the flour.

Using a dough hook, knead the dough on medium speed slowly adding the buttermilk until dough ball forms.

Lightly dust a flat surface with flour and flatten dough to 1 1/2 inch thick.

Using a wide mouth mason jar, or another punch out the biscuits. Re-knead and flatten excess dough for more biscuits.

Place biscuits in air fryer basket, brush tops with melted butter and cook at 370 for 5 minutes on each side.