When you’re making mayonnaise, or stirring crème anglaise, or holding a baby on your hip while working in the kitchen, you may wish you had an extra hand or two.I learned this trick while trying to make mayonnaise in one of my first restaurant kitchens; the example you see here is me making crème patissière at home. The problem with both these recipes is that you need one hand to do the whisking, a second hand to pour the oil (for mayonnaise) or hot milk (for set custards) and a third one to hold the bowl into which you’re pouring stuff still.So. Take a heavy saucepan and set it on a teatowel on your work surface. Line it with another teatowel. Jam the mixing bowl into the teatowel-lined saucepan so it stays put.Now, you can pour with one hand and whisk with the other without the bowl moving around.