Fried Eggs, Sunny Side Up or Over Easy

1. Put a skillet, preferably nonstick, over medium heat for about 1 minute. Add the butter and swirl it around the pan. When the foam subsides, about a minute later, crack the eggs into the pan. As soon as the whites lose their translucence (this takes only a minute) turn the heat to low and sprinkle with salt and pepper.
2. Cook the eggs until the whites are completely firm; the last place for this to happen is just around the yolk. If the egg has set up high, rather than spread out thin, there are two techniques to encourage it to finish cooking: The first is to cut through the uncooked parts of the white with a small knife; this allows some of the still liquid white to sink through the cooked white and hit the surface of the pan, where it will cook immediately. The second is to cover the skillet for a minute or 2 longer to encourage the white to finish cooking. Alternatively, of course, you can flip the eggs over when they’re solid enough to be lifted by a spatula. When the eggs are cooked, after about 5 minutes, remove them from the pan and serve.

— Recipe from How to Cook Everything Vegetarian