Once you reach that point you can relax your arm a little but just a little and increase the oil flow to a constant albeit thin stream. Once half of the oil is in add the rest of the lemon juice mixture. Continue whisking until all of the oil is incorporated. Leave at room temperature for 1 to 2 hours then refrigerate for up to 1 week. Find your next dish among the Mayonnaise recipes from Chowhound. View all Chowhound has to offer from recipes, cooking tips, techniques, to meal ideas.