Ingredients
1/4 cup sugar1 teaspoon all-purpose flour1 teaspoon ground mustard1/2 teaspoon salt1 large egg, lightly beaten1/3 cup white vinegar2 tablespoons water1 teaspoon butter1/2 cup mayonnaiseTorn mixed salad greens
Preparation
In a small saucepan, combine the sugar, flour, mustard and salt. Stir in egg until smooth. Gradually add vinegar and water. Cook and stir over medium heat for 3 minutes or until mixture reaches at least 160° and coats the back of a metal spoon.
Remove from the heat; stir in butter. Let stand for 5 minutes. Stir in mayonnaise until smooth. Cover and refrigerate until chilled. Serve with salad greens.