Gluten-free bread: I recommend Canyon Bakehouse Mountain White bread or Schar Sourdough Bread. Both turn out delicious, but they create slightly different textures. The Canyon Bakehouse bread bakes up extra crispy, while the sourdough version is crisp on the outside with a subtle chew in the center. Since Canyon Bakehouse bread is thinner, be sure to watch them the last couple minutes to make sure they don't get too brown.