This recipes was given to me by our late neighbour, Tante (aunt) Behrends when I was about six years old. She was like a grandmother to me, and every year, when our apples are ripe, I make it in her memory.
Quark may be hard to come by, you could try substituting low fat yogurt or thinned cream cheese. The result should have about 0,3% fat. If using e.g. Greek yogurt, reduce the oil.
The original recipe doesn't list a amount of sugar. I use 10-50grams, 10 for mum and myself, who like it less sweet, and 50 for my boyfriend, who has quite a sweet tooth. Any amount you like is fine.
The recipe calls for a plate of diced apples. I usually use about 5-7, depending on size.
Since the elderberries in our garden are ripe at the same time as our apples are, I like to throw in a handful as a homage to a traditional dish. If you can't get any, just skip them. —sarah