Smoked Salmon Smørrebrød

Ingredients

• 1/2 cup mashed potatoes (optional)
• 1/2 cup sour cream
• 1 tablespoon finely grated peeled fresh horseradish
• 1 teaspoon chopped fresh dill
• 1 teaspoon chopped fresh flat-leaf parsley
• 1 teaspoon fresh lemon juice
• Kosher salt, ground pepper
• 4 slices Danish rye or pumpernickel bread
• 8 ounces sliced smoked salmon
• 2 radishes, thinly sliced
• 2 tablespoons salmon or trout roe (optional)
• Dill sprigs and flat-leaf parsley leaves
• Kosher salt, ground pepper

Directions

1. Whisk potatoes, if using, sour cream, horseradish, dill, parsley, and lemon juice in a small bowl; season with salt and pepper.
2. Spread horseradish sour cream on bread and top with smoked salmon, radishes, roe, if using, dill, and parsley. Season with pepper.