Friday, April 22, 2011

Hard Boiled Eggs

Boiled eggs are eggs cooked by immersion in boiling water with their shells unbroken. Eggs cooked in water without their shells are known as poached eggs, while eggs cooked below the boiling temperature, either with or without the shell, are known as coddled eggs. Hard-boiled eggs are either boiled long enough for the egg white and then the egg yolk to solidify, or they are left in hot water to cool down, which will gradually solidify them, while a soft-boiled egg yolk, and sometimes even the white, remains at least partially liquid.

The egg timer was so-named due to its common usage in timing the boiling of eggs. Boiled eggs are a popular breakfast food in many countries around the world.

Soft-boiled eggs are not recommended for people who may be susceptible to salmonella, such as very young children, the elderly, and those with weakened immune systems.

Soft-boiled eggs are commonly served in egg cups, where the top of the egg is cut off with a knife, spoon or egg scissors, using a teaspoon to scoop the egg out. Other methods include breaking the eggshell by tapping gently around the top of the shell with a spoon. Soft-boiled eggs can be eaten with buttered toast cut into strips, which are then dipped into the runny yolk. In the United Kingdom, these strips of toast are known as "soldiers".

In Southeast Asia, especially countries like Malaysia and Singapore, soft-boiled eggs are also known as half-boiled eggs and are commonly eaten at breakfast. The major difference is that, instead of the egg being served in an egg cup, it is cracked into a bowl to which soy sauce and/or pepper is added. This variation is usually eaten with Kaya toast.

Hard-boiled eggs are boiled for longer than soft-boiled eggs, long enough for the yolk to solidify. They can be eaten warm or cold. Hard-boiled eggs are the basis for many dishes, such as egg salad, Cobb salad and Scotch eggs, and may be further prepared as deviled eggs.

Hard-boiled eggs are commonly sliced, particularly for use in sandwiches. For this purpose specialized egg slicers exist, to ease slicing and yield even slices.

There are several theories as to the proper technique of hard-boiling an egg. One method is to bring water to a boil and cook for 8 minutes. Another method is to bring the water to a boil, but then remove the pan from the heat and allow eggs to cook in the gradually cooling water. Others prescribe cooking in continually boiling water over heat for a shorter period of time.

Over-cooking eggs will typically result in a thin green iron II sulfide coating on the yolk. This reaction occurs more rapidly in older eggs as the whites are more alkaline. Immersing the egg in cold water after boiling is a common method of halting the cooking process to prevent this effect. It also causes a slight shrinking of the contents of the egg, easing the removal of the shell.

Hard-boiled eggs in their shells can be stored in the refrigerator for days to weeks.

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