Peel, quarter and core the apples. Cut about 50 g into small cubes, the rest into larger cubes. Boil up larger cubes with lemon juice and 3 tablespoons of water and cook for about 5 minutes.
Season to taste with sweetener. Mix quark, semolina, egg and salt. Fold in small apple cubes. Form 3 small buffers from the quark semolina and bake in hot oil until golden brown. Arrange the buffers with compote on a plate.
Arrange orange slice with cranberry jam. Sprinkle compote with lemon balm strips.