You can use whatever bread you like. Lots of people use a French bread loaf.. I never buy bread and I ain't starting now. I make French Toast or this Breakfast Bake when I have had some of my homemade bread on the counter for too long and its past its prime. Older bread will suck up the custard so well. Give your stale bread a second life haha. Alternatively if calories don't exist in your life, this is fun to make with donuts, croissants, cinnamon swirl bread and other pastries.