Mayonnaise sauce

Ingredients:

• 2 egg yolks
• 1/4 l. de sunflower oil. 
• 1/2 teaspoon salt. 
• 1 teaspoon de vinager o juice of 1/2 lemon. 

Preparación:
By hand: put in a bowl the yolks without the whites. Whisk constantly with a fork until the sauce get flirting. Get some rest and continue adding oil very slowly until all of the oil is incorporated.
Add, always beating, salt and vinegar or lemon juice. The holder can be replaced with a wooden spoon.
Blender: Place the egg yolks, salt and vinegar. Beat half a minute. Add the oil slowly without lifting the blender up. When the mayo is stabilized enough, continue incorporating oil to finish moving the blender up and down until you have consistency.

The secret is to thicken mayo at first when you take about 3 tablespoons of oil. Getting it right now, certainly not set up.
Never pour large amounts of oil.