Eggless Mayonnaise

Is vegan Mayonnaise better than the real thing?
If someone had asked me this question a few days back  I would certainly have said "No way !!" How can a veg mayo beat the real thing? How could vegetarian Mayonnaise ever beat and match upto the  richness and flavor of the actual thing?
But I have to admit how wrong I was ...It was surprisingly delicious and as good if not better than the real thing!! I never expected to be able to make thick mayonnaise without eggs and this recipe gave a thickness that I was quite satisfied with.This is definitely one recipe I'm sure I'll go back to several times.
Ingredients
2 medium potatoes
4 tsp oil
2 tsp vinegar
1 tsp salt
pepper to taste
1 tsp mustard sauce
1/2 tsp sugar
2-3 tsps milk
1/2 cup cream

Method
Boil potatoes, mash while warm. 
In a blender add the mashed potatoes, oil, vinegar,sugar,salt, pepper and the mustard sauce.
Whisk all the ingredients together till well blended and a you get a nice smooth, consistency.
If you find the consistency too thick, add a few tsp of milk and whisk again.
Take out from the blender and whisk in the cream.
Check for seasoning and adjust it according to your taste.
If you like a sweeter tasting mayonnaise add in some more sugar, likewise if you like it more sour reduce the sugar and add in some vinegar or few drops of lemon juice.
This recipe makes about 3/4 cup.