Quiche recipe with onions

The recipe for quiche probably the most basic of which can be used if at any time of day. It can be pretty cool for caller small hollow in the middle of the afternoon
ingredients
For a quiche:
1 pie crust
4 eggs
6 large onions
20 cl of single cream
20 g butter
200 g grated cheese
2 tablespoons extra virgin olive oil
salt, black pepper
preparation
Preparation of the bottom of the quiche:
Press the pastry into a buttered pie plate first.
Brush the dough in bottom of pan with egg yolk and drill small holes in the dough with a fork
Place the bottom 5 to 10 minutes in an oven preheated to 200 ° seal the well bottom.
Making the filling of your quiche:
Peel your onions and cut into thin strips
Heat the olive oil in a skillet over high heat
Add the onions and let it melt and brown for 7-8 minutes. They must be really soft.
Preparing the quiche:
Beat eggs and cream
Mix everything in order to obtain a homogeneous mixture and lightly sparkling.
Salt and pepper to taste.
Baking the quiche:
In the pre-baked pastry, place the cooked onions and sprinkle with grated cheese.
Cover up 2 / 3 of the height with the egg mixture
Bake in oven for 20-30 minutes at 200 degrees.