For the homemade pectin from the washed apples, remove leaves, blossom base and stems. Roughly chop unpeeled apples with core and seeds.
In a large saucepan, cover apple pieces with water and bring to a boil over moderate heat. Then simmer for 30 minutes until apples are cooked until tender.
Transfer the apple pulp to a damp straining cloth/cotton towel stretched over a bowl and let the juice drain for about 24 hours until it stops dripping.
Then bring the apple juice to a boil and reduce by half over high heat. Make pectin test (see recipe) and preserve. Pour hot pectin into twist-off jars.
Preparation Tip:
Under no circumstances squeeze the pulp! The juice / pectin obtained will otherwise become more cloudy.