Ingredients

• 2 egg yolks
• 1/2 teaspoon salt
• 1 tablespoon powdered sugar
• 3 tablespoons lemon juice or 3 tablespoons vinegar
• 1 1/2 cups oil
• 1 1/2 tablespoons flour or 1 1/2 tablespoons cornstarch
• 1 teaspoon dry mustard
• 1/2 cup boiling water
• 2 tablespoons vinegar
• salt

Instructions

1. Using a blender or electric mixer, blend egg yolks, salt, sugar and 1 tablespoons of the lemon juice.

2. Slowly pour in 1 cup oil, a few drops at a time, mixing thoroughly.

3. Add remaining 1/2 cup oil a little faster, carefully blending in each bit before adding the remaining 2 tablespoons lemon juice.

4. Mix the flour, mustard, boiling water and vinegar together until smooth.

5. Pour into a small saucepan and cook until smooth and paste-like (but not too thick).

6. Slowly add this hot mixture to the mayonnaise and blend well.

7. Pour in a container and cool in the refrigerator.