Polish Tartar Sauce - cooking recipe

Ingredients

2/3 cup mayonnaise
1/4 cup sour cream
2 tablespoons prepared mustard
1 tablespoon prepared horseradish
1 tablespoon fresh lemon juice
1 tablespoon powdered sugar
1/2 teaspoon salt
1/2 teaspoon black pepper
3/4 cup gherkins or 3/4 cup dill pickle, minced
1 tablespoon chives, minced
1/4 cup marinated mushrooms, minced
1 tablespoon non-pareil small caper

Preparation

Mix all ingredients together.
Best if made ahead.
I served it with batter fried fish.