Flan grillé aux Champignons (Latticed Mushroom Flan)

Ingredients

• fine pâte à foncer
• butter
• English mushrooms
• butter
• a little chopped onion
• cream

Instructions

1. Butter a flan ring and line it with fine pâte à foncer.
2. Sauté the very fresh, barely open English mushrooms in butter with a little chopped onion, bind them with cream and let them cool.
3. Fill the lined ring with this mixture.
4. Moisten the edges and lattice the top with thin crossed bands of pastry, as for a flan de pommes grillé.
5. Gild the lattice.
6. Bake in a good hot oven and serve the flan as it comes from the oven.