Cornelian cherry marmalade

Directions

1. Wash the chestnuts and remove the shells. Place them in a saucepan, cover with water, and cook until they are tender. ⏱ ≈ 10 min
2. Mash them in a colander to obtain a puree. ≈ 4 min
3. In a deep stainless steel saucepan, combine the puree and sugar, mixing until the sugar is completely dissolved. ≈ 4 min
4. Cook for 10 to 15 minutes, starting with high heat and then reducing to low. ⏱ 15 min
5. Add the citric acid just before removing from the heat. ≈ 3 min
6. Pour: Pour the remaining liquid jam into a large dish, cover with muslin, and let it thicken in the sun for 2-3 days, stirring frequently. ⏱ ≈ 10 min