Very good with fish For example with hot-smoked salmon I got this recipe nearly forty years ago from someone who was married to a Swede. For about 2.5 decilter (1 cup) sauce; preparation 10 minutes. 2 Tbsp mustard 2 Tbsp sugar 2 Tbsp white vinegar 6½ Tbsp sunflower oil (or other neutral-tasting vegetable oil) 6½…