Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make an angel cake [title] Prepare your egg whites. [step] If you have the egg whites, skip this step. First, get a large bowl and crack one of the eggs.

Ending1: Use a butter knife to separate the yolks from the whites, set them aside; or use an electronic mixer to beat them for a few minutes. The yolks make starchy, but not hard, solids. Ending2: Next, fill it up about halfway with whole milk and put in one of the oven mitts or something to catch the egg whites as they fall into the milk. Put the yolks or shortening in the bowl. Ending3: Hold each half of the shells in both hands, with the yolk still in it. Take one half of the eggshells and pour its contents into the other, letting the egg whites dribble into the bowl. Ending4: As you prepare the egg whites, be careful not to mash them for too long. Do not mash it too much, you want it to be soft to the touch but not all the way runny.

Answer format: ending1/ending2/ending3/ending4