Homemade Mayo(Boiled)  
["1 egg", "1/2 tsp. dry mustard", "2 Tbsp. flour", "1/2 c. sugar or Equal", "1 c. milk", "1/2 c. vinegar", "1/2 stick butter or 1/4 c. oil"]
["Mix first 4 items until smooth.", "Then mix next three items. Bring to full boil.", "Stir constantly.", "Cool and refrigerate.", "Vary sugar and/or vinegar to suit taste."]
["egg", "dry mustard", "flour", "sugar", "milk", "vinegar", "butter"]