Preheat the oven to 230°C
Rub the butter into the sieved flour in a bowl until it resembles coarse breadcrumbs.
Add in the grated cheese, mustard and cayenne.
Next, add the egg and milk mixture, holding back a little so the mixture doesn’t get too wet.
Mix quickly with your hands until the mixture comes together.
Tip out onto a floured surface.
Roll out to approx. 1cm deep, cut with small round cutter (they should be bitesize for this recipe).
Arrange on a baking tray and bake for 10-12 minutes until risen and golden brown.