A sturdy, slightly dense bun with a soft interior and a bit of tooth on the outside is ideal for juicy burgers. Brioche and potato rolls are popular because they combine richness, lightness, and structure. For heavier toppings or very saucy burgers, consider a kaiser roll, pretzel bun, or a seeded sandwich roll with a chewy exterior.
Avoid very soft, airy buns that collapse when saturated with juices. Toasting the cut sides adds structure and creates a barrier that helps prevent sogginess.
Choosing the right bun and toasting it before assembly are simple steps that make every bite manageable and flavorful.