Ingredients 850 g quinces 1 kg of sugar 1 tsp (5 g) tartaric acid 1 liter of water Photo added on 24 Nov 2015 Photo author gigi Method Juicy ripe quinces Peel and grate rare in boiling sugar syrup. Boil over high heat to thicken the syrup. A solution in hot water tartaric acid and boiling continued for a further 2-3 minutes. Containers: Preserves with quinces Preserves and pickles Whole fruit jams Bulgarian cuisine Difficulty Average Tested 2 users 01 Dec 2002 Author vg Comments We love our country sweet aromatic quinces. I shred them in a baking dish - 1.5 kg of fruit mix with 1 kg of sugar. Stir well, fill jars and sterilize them one and a half hours. There is no danger of Zagora. I hate to belabor quinces, but sweet is great. I put a little water (600 ml).