For the quince-lemon chutney, rub the quinces with a tea towel, peel, quarter, remove the core and cut the quinces into small cubes.
Peel and finely chop the shallot and garlic clove. Peel lemon peel wafer-thin and chop finely as well. Place in a wide saucepan with the remaining ingredients and simmer at a moderate temperature for about 45 to 60 minutes.
It is important that a lot of liquid evaporates. The chutney should have the consistency of jam at the end. Stir occasionally.
Pour the quince-lemon chutney into very well cleaned twist-off jars and seal.