For the sauce, mix sour cream, horseradish, lemon juice, chopped herbs and salt to taste. Mix well.
Grease the bread with the cooked sauce.
Place finely chopped salmon on top.
Garnish the top with a thinly sliced radish and herbs.
Smoked salmon sandwiches are perfect for a festive table and a buffet table; preparing such an appetizer is very simple and quick. Sandwich sauce can also be used for salads, ready-made sauce can be stored in the refrigerator for several days.