1      cup           cucumber, peeled, seeded, diced
1      pint          sour cream
1      tablespoon    white wine vinegar
1/2  teaspoon      salt
1/8  teaspoon      cayenne
1      tablespoon    onion — grated
3      tablespoons   fresh dill — chopped

Mix sour cream, vinegar, salt, cayenne, and grated onion. Stir in chopped dill and diced cucumber. Refrigerate two hours before serving.