1 roll puff pastry to line a Portmerion baking tray
2 tbsp olive oil
2 large red onions-finely sliced
2 leeks sliced
4oz grated gruyere cheese, grated
300ml single cream or 300ml crème fraiche
2oz grated parmesan
Place the oil and onions and leeks into a pan, place on the roasting oven floor until soft and lightly golden,
Cool the filling for 10 minutes.
Spoon into the prepared pastry case, sprinkle over the rocket leaves and the grated cheese. In a jug mix the eggs and cream with the grated parmesan, pour over the filling in the case.
Bake on the floor of the roasting oven for approx 30 mins until set and golden.