There are several popular egg cooking techniques that can be used to prepare eggs in various ways. One common method is boiling, where eggs are submerged in water and cooked until the desired firmness is reached. Soft-boiled eggs have a runny yolk, while hard-boiled eggs are fully cooked through. Another technique is frying, which involves cooking eggs in a pan with a small amount of oil or butter. This can be done sunny-side up, where the yolk remains runny, or over-easy, where the egg is flipped to cook both sides. Scrambling is another method, where eggs are beaten and cooked until fluffy.