125g chilled butter, cubed
125g plain flour, sifted
25g freshly grated parmesan
salt and freshly ground black pepper
pinch cayenne pepper
Preheat the oven to 180C.
Rub the butter into the flour, by hand or in a food processor, until the mixture looks like fine breadcrumbs.
Stir in the parmesan, seasoning and cayenne pepper.
Work the mixture together into a ball and then knead briefly on a work surface lightly dusted with flour until smooth.
Cut the dough in half, flatten each piece slightly, then roll out thinly between 2 large sheets of cling film.
Lift off the top piece of cling film and cut into 5cm/2in biscuits.
Carefully lift them onto a lightly buttered baking sheet, then knead together and re-roll the trimmings to make more biscuits. You should make about 30 biscuits in total.
Sprinkle some parmesan cheese on each biscuit and bake in the oven for approx 10-15 minutes