For jam:   Simmer quince and two litres of water in a deep saucepan until tender, about 1½ to 2 hours.  Purée the quince, then pass it throu...

When making jam with chia seeds, the ratio of fruit to chia seeds is usually around 2 cups of fruit to 2 tablespoons of chia seeds . Howeve...

About the amount of sugar.   - If you are going to eat jam quickly - you can add just one kilogram of sugar on 1 kg of berries.  So the ja...