According to Jewish tradition, the three Sabbath meals (Friday night, Saturday lunch, and Saturday late afternoon) and two holiday meals (one at night and lunch the following day) each begin with two complete loaves of bread. (Source Wikipedia) Traditionally its a braided bread and is mostly sold that way.
Serious stuff and at the risk of being disrespectful I love Challah for making French Toast, it¨s terrific! I cannot count the times I have had French Toast with Challah in a New York restaurant for brunch. It is a real brunch classic. it’s also great for sandwiches. It has a bit of a loose crumb which make it perfect for serving toasted for breakfast or most meals.
I bake in a loaf pan which gives me lots of perfect slices and it will bake up perfectly fine.