Homemade Mustard Salad Dressing

Ingredients

• 1  eggs beaten
• 2 tablespoons flour all-purpose
• 1 teaspoon mustard prepared
• 0.5 teaspoon salt 
• 0.3 cup water 
• 0.5 cup sugar white
• 0.3 cup citrus champagne vinegar 

Equipment

• whisk
• double boiler

Directions

1. Whisk together the sugar, flour, mustard, salt, vinegar, water and egg.
2. Cook in a double boiler until thick; allow to cool.
3. Mix with equal parts mayonnaise and stir into potato salad.