Ingredients
1 egg yolk
1 tsp. mustard
1 tsp. powdered sugar
1/4 tsp. salt
dash cayenne pepper
1 cup salad oil
2 tbsp. lemon juice or vinegar

Directions
Place egg yolk, mustard, sugar, salt and pepper in a bowl. Beat well, adding the oil very slowly at first and more quickly after one third of the oil has been used, thinning from time to time with lemon juice or vinegar. Makes 1-1/2 cups dressing.