In a blender, add the garlic and egg yolks. Blend until smooth. With the blender running, slowly drizzle in the enough oil until the mixture is thick and emulsified. Season with salt.
Serve with the salt cod.
Yield: about 1 1/2 cups
*RAW EGG WARNING
The American Egg Board states: "There have been warnings against consuming raw or lightly cooked eggs on the grounds that the egg may be contaminated with Salmonella, a bacteria responsible for a type of food poisoning....Healthy people need to remember that there is a very small risk and treat eggs and other raw animal foods accordingly. Use only properly refrigerated, clean, sound-shelled, fresh, grade AA or A eggs. Avoid mixing yolks and whites with the shell."