In a mixing bowl, add the flour, salt, sugar, baking soda, baking powder, and butter. Mix well.
Next, add the buttermilk little by little and knead into a smooth dough. The dough doesn't need to be kneaded a lot. Just knead until it comes together. Rest it for 30 minutes to 1 hour.
Next, once the dough is well rested, transfer it to a board. Dust it with flour and roll it out.
Fold the sides together and roll again. Repeat this step 3 or 4 times.
Next, shape the dough into a rectangle. Use a cookie cutter and cut out circular shapes of the dough.
Pre-heat the air fryer at 200℃ for 5 minutes.
Transfer the cut out circular dough balls into the air fryer, brush them with buttermilk, and cook them at 200℃ for 12-15 minutes.
Enjoy with tea or a beverage of your choice.
Notes
We have made smaller sized biscuits here. You can decide the size as per your preference.