Welsh Salad Dressing - cooking recipe

Ingredients

1 egg
dash of salt and pepper
1 Tbsp. melted butter
1/2 teacup milk
1/2 teacup warm water
1 Tbsp. sugar
1 tsp. mustard
1 Tbsp. flour
1/2 teacup vinegar

Preparation

Mix egg, sugar, salt and pepper together.
Add flour and mustard.
Keep it a nice smooth paste.
Add melted butter, milk, water and lastly vinegar.
Cook over low heat until as thick as cream.
Do not boil.
Keep in refrigerator.