Herring in Mustard Sour Cream on Rye Bread

Name: Herring in Mustard Sour Cream on Rye Bread
Prep time: 15 min
Total time: 12 h
Yield: 4 servings
Cuisine: European
Ingredients: 4 fillets pickled herring fillets, sliced into 1/4" pieces; ¼ medium medium onion, finely chopped; ¼ small small fennel bulb, finely chopped; 1 cup sour cream; 2 tablespoons whole grain Dijon mustard; 2 tablespoons finely chopped fresh chives; 1 tablespoon finely grated peeled horseradish or 2 teaspoons prepared horseradish; 1 tablespoon fresh lemon juice; to taste Kosher salt, freshly ground pepper; 8 slices dark seeded bread or rye bread, cut into squares or triangles; to taste Fresh parsley leaves (for serving)

A Scandinavian-inspired appetizer featuring pickled herring mixed with a creamy mustard sauce, served on dark rye bread. The combination of herring, sour cream, mustard, and fresh herbs creates a rich and flavorful open-faced sandwich.

4 servings

12 hr

Published October 4, 2025

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Ingredients

•4 fillets pickled herring fillets, sliced into 1/4" pieces
•¼ medium medium onion, finely chopped
•¼ small small fennel bulb, finely chopped
•1 cup sour cream
•2 tablespoons whole grain Dijon mustard
•2 tablespoons finely chopped fresh chives
•1 tablespoon finely grated peeled horseradish or 2 teaspoons prepared horseradish
•1 tablespoon fresh lemon juice
•to taste Kosher salt, freshly ground pepper
•8 slices dark seeded bread or rye bread, cut into squares or triangles
•to taste Fresh parsley leaves (for serving)

Cooking Instructions

1.
Mix pickled herring, onion, fennel, sour cream, mustard, chives, horseradish, and lemon juice in a small bowl; season with salt, pepper, and more lemon if desired. Transfer to a large jar; cover and chill at least 12 hours and up to 2 weeks. Serve herring mixture on bread topped with parsley.
720 min