Senapssås (Mustard Sauce for Herring)
A bright, piquant mustard emulsion is one of several bold sauces that traditionally accompany pickled herring in Sweden. The sweet-tart fish is bathed in the piquant dressing, then heaped atop crunchy crispbread and devoured—ideally between shots of aquavit, especially at Swedish Midsummer celebrations. From: Saveur MAKES 2 CUPS
2 tbsp. cider vinegar
2 tbsp. Dijon mustard
2 tbsp. whole grain mustard
¼ tsp. sugar
4 egg yolks
2 cups grapeseed oil
Kosher salt and freshly ground black pepper, to taste
Minced chives, for garnish
Whisk cider vinegar, Dijon and whole-grain mustards with sugar, egg yolks, salt, and pepper in a bowl. Slowly whisk in grapeseed oil until emulsified; garnish with minced chives.