To cook over easy eggs, follow these steps for perfectly cooked whites and runny yolks:

1. Preheat a nonstick or cast iron skillet over medium-low heat for about 2-3 minutes. Add about 1 tablespoon of butter or oil and let it melt and coat the pan.
2. Crack fresh large eggs carefully into the pan, avoiding breaking the yolks.
3. Let the eggs cook undisturbed for 1-2 minutes until the whites are almost fully set but the yolks are still runny.
4. Using a thin, wide spatula, gently slide it under the egg and quickly but carefully flip it over.
5. Cook for an additional 30 seconds to 1 minute, just enough to set the whites on the other side but keep the yolk runny.
6. Remove from the pan, season with salt and pepper, and serve immediately.

Using medium-low heat is important to ensure the whites set gently without overcooking or crispy edges. A nonstick pan and gentle flipping technique help keep the eggs intact.