Hello, have ever eating boiled egg,? they are usually cooked by immersion in boiling water.
Yes.  I eat them quite often.  I really like them in salads.
Salad
A salad is a dish consisting of a mixture of small pieces of food, usually vegetables or fruit. However, different varieties of salad may contain virtually any type of ready-to-eat food. Salads are typically served at room temperature or chilled, with notable exceptions such as south German potato salad which is served warm. 
Garden salads use a base of leafy greens such as lettuce, arugula/rocket, kale or spinach; they are common enough that the word "salad" alone often refers specifically
Boiled egg
Boiled eggs are eggs, typically from a chicken, cooked with their shells unbroken, usually by immersion in boiling water. Hard-boiled eggs are cooked so that the egg white and egg yolk both solidify, while soft-boiled eggs may leave the yolk, and sometimes the white, at least partially liquid and raw. Boiled eggs are a popular breakfast food around the world.
Besides a boiling water immersion, there are a few different methods to make boiled eggs. Eggs can also be cooked below