1. For the preparation of the mini pear chutney and foie gras tarts:
2. Peel the pears and cut them into small cubes, removing the core.
3. Peel the onion and finely chop it.
4. In a saucepan, add the onion, pears, raisins, vinegar, sugar, spices, salt, and pepper.
5. Bring everything to a boil.
6. Let it simmer for about 1 hour, stirring regularly, until the chutney has the consistency of jam.
7. Let the preparation cool down.
8. Preheat the oven to 190°C (375°F).
9. Place the pastry discs on a baking sheet and bake them for 10 to 12 minutes, until golden brown.
10. Cut your puff pastry into 14 small discs with a diameter of 8 cm (3 inches).
11. Let the discs cool.
12. Carefully fill them with a spoonful of pear chutney.
13. Cut the foie gras into thin slices and distribute them on the tarts.
14. Sprinkle with fleur de sel and serve.