Onion bagels are another popular choice for bagel enthusiasts in Istanbul. These bagels are made with a dough infused with finely chopped onions, giving them a distinct flavor. The dough is boiled and then baked to perfection, resulting in a crispy exterior and a soft interior. Onion bagels can be enjoyed on their own or with a variety of toppings, such as cream cheese, lox, or tomato slices. They are a flavorful and satisfying option for breakfast or a quick snack.