A foolproof, easy-to-make French toast casserole that soaks overnight for a perfectly custardy inside and crispy top. Ideal for busy mornings and gatherings.
Use day-old or stale sturdy bread like brioche or challah for best texture. Cover casserole tightly when refrigerating overnight to prevent drying out. If top browns too quickly, tent with foil and continue baking. Optional add-ins include nuts, chocolate chips, or fruit. For dairy-free, substitute milk and butter accordingly.
Keywords: French toast casserole, overnight casserole, easy breakfast, brunch recipe, dump recipe, custardy French toast, make-ahead breakfast