Herring is an essential part of Scandinavian cuisine and always has a place in the breakfast smorgasbord, along with other kinds of salted and pickled fish, breads, pastries, cheeses, cereals, eggs, and potatoes. (We admit that herring for breakfast may seem a little unusual to some people. But try it on a thick slice of buttered rye—you'll be quickly converted.)

　　Active time: 20 min Start to finish: 20 min

Ingredients

　　2 (8-oz) jars herring "party snacks" in white wine sauce, rinsed, drained, and patted dry

　　1/3 cup mayonnaise

　　1/3 cup sour cream

　　1 1/2 tablespoons coarse-grained mustard

　　2 teaspoons fresh lemon juice

　　1 teaspoon curry powder

　　1 teaspoon sugar

　　Accompaniment: rye bread and butter

　　Remove and discard skin and dark flesh from herring. Cut herring into 1/4-inch pieces. Whisk together remaining ingredients and stir in herring. Season with salt and pepper.