Kohlrabi and Potato Salad with Horseradish

1 or 2 kohlrabi peeledattractive kohlrabi
2 medium Potatoes
2 to 4 tablespoons sour cream
2 teaspoons chopped dill
Salt and freshly milled pepper
Prepared horseradish in vinegar

Slice the kohlrabi into julienne strips or wedges. Steam until tender, 5 to 8 minutes.
Coarsely cube potatoes and boil until tender. Then put potatoes and kohlrabi in a bowl and toss with sour cream, horseradish, and dill.
Season with salt and pepper to taste.