Mayonnaise and Sour Cream Sauce

• 2 egg yolks
• 1 teaspoon prepared mustard
• 2 tablespoons

In a bowl mix the egg yolks, mustard, vinegar and salt. Slowly, drop by drop, beat in the olive oil with a steady motion, until a good thick mayonnaise is formed, adding more oil if necessary.

Beat the egg whites until stiff but not dry. Fold them into the sour cream. Add the sour cream mixture to the mayonnaise mixture and stir well. Chill.