Rub the self-raising flour and butter together until you get a fine breadcrumb type consistency.

Add 35g of grated cheddar cheese to this mix.

Mix well.

Add the semi-skimmed milk and stir until just combined. Don't overwork the dough.

You'll find that the dough mixture is fairly wet, if it's too moist then add another 5-10g of self-raising flour and mix again.

Divide this mixture into 6 equal portions.

Line your Ninja Foodi basket with heatproof baking or parchment paper.

Drop the mixture into the Ninja Foodi basket. If you've got a very small air fryer basket, or a dual air fryer, you may have to use it twice, or both sides at the same time to cook them all together.

Air fry at 200C for 8-10 minutes.