Ingredients
2 eggs plus 1 yolk, beaten
3 medium onions, thinly sliced
30g butter
1/2 c cream
1/2 c milk
1 tsp plain flour
1/2 tsp salt
nutmeg and black pepper to taste
30g swiss cheese
2 tsp extra butter
FOR THE PASTRY :
1 1/2 c plain flour
125 g cold butter, diced
2 tsp cold water
1 egg yolk
pinch salt
Method
For the pastry, add salt to flour and rub in butter till mixture resembles coarse bread crumbs. Mix egg yolk and water and stir it into the flour to form a ball of dough. Cover with cling film and chill for 20 minutes.
Roll out pastry to line a 10 inch flan ring or pie plate.
Bake blind in a very hot oven (220C) for 7-8 minutes or until just coloured. Remove from oven.
In a pan, melt butter and cook the onions on low heat until soft. Remove from heat.
In a bowl, whisk egg, cream, milk, flour, seasonings and cheese together until cheese is very finely chopped.
Arrange onion on the pastry case. Pour filling over, dot with extra butter and bake in a moderate oven (180C or 350C) for 25-30 minutes until filling is set and surface is golden brown.