A classic dish from northern France. I make onion tarts for our family dinner, a light lunch, parties and picnics. It is very versatile as it can be eaten hot out of the oven or cold. Although if cold, I find it is better at room temperature than cold out of the fridge.
The difference with a pissalardiere is in the seasonning.
The preparation is easy. You will need to prepare ahead a shortcrust pastry (or purchase a good quality one, then this tart is even easier to make).
Serves 4-6
Ingredients
For the shortcrust pastry:
- 75 g of soft butter (I like to use salted butter)
- 150 g of flour
- Some icy cold water
The above quantity is enough for a 22 cm diameter tart dish. There is additonal instruction on this shortcrust pastry page.
For the filling:
- 4 large onions
- 20 g butter
- 2 eggs
- 1 tablespoon of four
- salt, pepper
- 1 tsp ground nutmeg
- 1/2 cup of milk or cream
Method
- Place the flour and soft butter in a large bowl. With your finger tips rub the butter into the flour. You will obtain a coarse granular texture.
- Add a little water at the time and mix lightly until the pastry comes together as a ball. Do not work more than the getting of a nice ball. Cover or wrap in cell wrap and rest for at least half an hour (1 few hours is better) at room temperature.
- In the meanwhile, peel and cut the onions. Heat up the butter in a thick base frypan (use one with a lid) and place the onions. Stir. After 30 seconds, reduce the heat to half.
- After a couple of minutes, stir with a wooden spoon and cover with the lid. You may need to reduce further the heat, we are looking here fro a slow je=heat to reduce the onions. They must not brown. The onions will turn golden and start to “melt”. This will take 15-20 minutes.
- Once melted, add salt, pepper, nutmeg and leave at room temperature.
- Preheat your oven at 180°C. Using a rolling-pin and a little flour to prevent sticking, roll the shortcrust pastry and transfer to the tart tin. Trim the edges.
- In a bowl, mix the onions with the flour, eggs, milk or cream and transfer to the tart. I like adding fresh thyme is I have some handy at this stage.
- Bake for 20-30 minutes until the pastry is light brown. Remove from the oven. Serve with a mix green salad.
Note: you can use the excess to make tartlets either sweet or savoury. A number of sweet tarts (for e.g. apple, apricots, peaches, pears) use the same pastry.