Mix the low-fat quark with the yoghurt, mustard, lingonberries and linseed oil until smooth. Season with the herb salt and a little pepper. Wash the parsley, shake well dry, chop and stir into the quark. If necessary, season again with a little salt and pepper.
The dip tastes very good with raw vegetables such as cucumber, paprika, kohlrabi, carrots or radishes.
Note: Linseed oil is rich in valuable omega-3 fatty acids.