What is typically used to cover a bialy?

Bialys are traditional Jewish baked goods that originate from the Polish city of Bialystok. They are similar to bagels but are distinguished by their signature filling and shape. Typically, bialys are round and have a depression in the center rather than a hole, which is commonly filled with cooked onions, garlic, or sometimes poppy seeds.

The use of onions as a filling in bialys is a classic choice and contributes to their characteristic flavor profile. This savory filling complements the dough's texture and taste, making it a beloved component of this dish. While other toppings or spreads, such as butter, salmon, or jelly, might be used in various contexts with other types of bread or bagels, onions are specifically noted as the traditional filling for bialys.