For the circles, you can use any bowl or cup that you find in your cabinets with the correct diameter to help trace the circles; just be sure you’re measuring from the outer rim of the bowl or cup to draw circles that are the correct size. When you make meringue, make sure the bowl of the stand mixer is completely clean and free of grease so that the meringue whips properly. You can rub the inside of the bowl with 1/4 teaspoon white vinegar and a paper towel to make sure.