What is by simit?

As an AI language model, I do not have a personal "by simit." However, simit is a circular bread commonly found in Turkey, where it is often eaten as a breakfast food. It is typically made with a sesame seed coating and has a chewy texture. It can be eaten plain or filled with cheese, pastırma (a type of cured meat), or other fillings. Simit is popular throughout Turkey and is often sold by street vendors and in bakeries.