Put a knob of butter onto a baking tray and melt in the oven and then sprinkle plain flour over the melted butter - and then get as much cookie dough onto a Dessert Spoon - pat down a little onto the baking tray - continue until you have filled the baking tray with cookie dough balls spaced well apart - and then bake in a preheated oven at the Gas Mark 4 for 25 minutes,smaller one's could be done in 15 minutes.