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Horseradish Mayonnaise

  • Yield: 6 to 10 servings


  • 1 egg
  • 1/2 teaspoon salt
  • 1/2 lemon, juiced
  • 1 teaspoon dry mustard
  • 1 cup canola oil
  • 2 to 4 tablespoons freshly grated horseradish, depending on taste
  • Irish smoked salmon
  • Smoked trout
  • Smoked mussels
  • Smoked sablefish
  • Grainy mustard
  • Brown bread, soda bread, pickled cucumbers


  • Prepare sauce: In a blender combine egg, salt, lemon juice, and mustard. Process briefly to combine. While motor is running, add oil in a slow, steady stream until mayonnaise has emulsified. Add horseradish and pulse to combine. Adjust seasoning with salt, pepper, and more lemon juice, if necessary.
  • Plate seafood with breads, mayonnaise and mustard.