What type of bread is used for the egg sandwich?

The egg sandwich is served on a sesame seed bun, which provides a soft texture that complements the egg filling while adding a subtle nutty flavor and a slight crunch from the sesame seeds. The sesame seed bun is ideal for holding the sandwich together and enhancing the overall eating experience, making it a popular choice for sandwiches featuring breakfast ingredients like eggs.

While ciabatta, bagels, and sourdough could all be delicious bread choices for various types of sandwiches, they do not offer the same flavor profile or texture combination that complements the egg filling as effectively as a sesame seed bun does. A ciabatta might be too crusty, a bagel would impart a different density, and while sourdough contributes a unique tang, it may not match the specific taste intended for this sandwich. The sesame seed contextually fits the culinary presentation of the egg sandwich best among the available options.