to make mayonnaise, you'll need 3 eggs, lemon juice, white vinegar, and some high-quality olive or vegetable oil. crack the eggs and separate the yolks from the whites, putting the yolks in a heat-safe mixing bowl. to the yolks, add 2 tbsp of white vinegar, 2 tbsp of lemon juice, and 2 tbsp of water and then mix well.