Apple and Radish Salad with Yogurt Dressing
Rinse the apples and pat dry. Quarter the apples, remove the core, and cut into thin slices. Peel and thinly slice the radish. Drizzle the apple and radish slices with lemon juice immediately. Coarsely chop the walnuts, then mix with the apples and radish.
Mix the yogurt with milk until smooth, then stir in the mustard lemon juice, and horseradish. Season strongly with salt and pepper, then mix in the parsley. Mix the sauce into the salad, and stir until thoroughly combined. Garnish the salad with parsley, and serve immediately.