Cheese and Onion Pasties

2 onions, chopped
250g mature cheddar, grated
2 tbsp veg oil

Heat the oil in a frying pan, add the onions and cook until softened. Remove from the heat and allow to cool. Mix in the cheese. Roll out defrosted puff pastry to the thickness of a pound coin, add 1/4 of the mix, wet the edges of the pastry with water. Close the pasty and crimp the edges if you wish. Place on a baking tray and brush lightly with milk. Bake for 30 minutes at 200 degrees centigrade.