Homemade Mayonnaise Recipe

In a double boiler or metal bowl over simmering water, constantly whisk the egg yolks, water and lemon juice until mixture reaches 160 ° or is thick enough to coat the back of a spoon. While stirring, quickly place the bottom of the pan in a bowl of ice water; continue stirring for 2 minutes or until cooled. Transfer to a blender. Add salt and pepper. While processing, gradually add oil in a steady stream. Transfer to a small bowl. Cover and refrigerate for up to 7 days.