This is the ideal party spread for everything from crunchy French bread to grilled fish or chicken. Make a double batch because it will disappear fast.
Use either a mortar and pestle or a food processor. Grind the garlic. Add the salt and egg yolk, and beat until the egg turns lighter in color. Very, very slowly, drizzle in the olive oil, followed by the lemon juice. Stir constantly. Season to taste. You may also add herbs for a variation.