Mix eggs and cream well. Season with salt and pepper.
Grease a heart-shaped soufflé dish. Pour shallot and bacon mix into dish, then add grated Gruyère AOP. Cover with egg and cream topping. Bake for about 50-60 mins in a preheated oven at 120°C.
Let cool for 1 minute, then remove flan from dish and serve immediately. Goes well with green salad.