1/2 c. water
1/4 c. water or dry white wine
3 tbsp. cider vinegar
2 tsp. finely chopped scallions
1/4 tsp. salt
Dash pepper
3 egg yolks
1/2 c. mayo

Combine all ingredients except mayo and mix well in blender. Then cook over low flame, stirring until thick. Remove from heat and stir in mayo. Makes 1 1/2 cups.