This Eggnog French Toast Bake is the ultimate make-ahead Christmas breakfast. It features a rich, spiced custard soaked into brioche, baked until golden and caramelized, and is completely stress-free for a memorable holiday morning.
Using slightly stale, dry bread is the single most important tip. Fresh, soft bread will soak up the custard and turn into a sad, soggy mess. Day-old brioche is ideal. If you only have fresh bread, cube it and let it sit out uncovered for a few hours, or give it a quick toast in the oven. This little step is the difference between a perfect casserole and a mushy one. Don’t over-bake; the center should be just set with a slight wobble. It will continue to cook from residual heat as it rests.
Keywords: eggnog french toast bake, christmas breakfast, overnight french toast, holiday brunch, brioche french toast, make-ahead breakfast