Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make a mushroom omelette [title] Wash the mushrooms and cut them into thin slices. [step] You can leave the stems on, or discard them. Be sure to scrub the mushrooms with a soft-bristled brush to remove any dirt.

Ending1: Wash the mushrooms with lukewarm water and dry them on a paper towel. [substeps] You can leave the mushrooms whole or chop them into small chunks to eat later. Ending2: You don't need to peel them. [title] Heat 1 teaspoon (5 grams) of unsalted butter in a medium-sized frying pan over medium heat. Ending3: [title] Saute them overnight in the pan. [step] You'll know that the mushroom is done when it's lightly-browned on one side and crispy on the other. Ending4: Make sure that you rinse all of the mushrooms before you cook them. [substeps] If you don't have a sharp knife, you can use a vegetable peeler, a pastry knife, or a combination of both.

Answer format: ending1/ending2/ending3/ending4