Semi-Boiled Eggs

The difference between semi-boiled eggs and hard boiled eggs is in the yolk remaining fluid (and so tepid, but not cooked), as the whites are well cooked (completely opaque). This implies a delicate balance in the cooking time. To optimize chances, I plunge the eggs in water which is already boiling, because heating the water with the eggs in it would lead to the heat diffusing through the yolk during the whole process, leading to the yolk being overcooked.

To cook semi-boiled eggs, put the eggs in a pan filled with already boiling water (so that the eggs are completely immersed) using a spoon. Then keep the water boiling with the eggs in it. Keep boiling gently for 3 and a half minutes. Remove the eggs from the water with a spoon or throw the water through the sink retaining the eggs with a spoon.

Figure . Boiling Eggs (Cooking time for semi-boiled eggs: about 3 minutes and 30 seconds minutes after immersing the eggs)