This festive French toast casserole combines rich eggnog, pillowy brioche, and warm holiday spices for a cozy, crowd-pleasing brunch. Prep it the night before for an easy, stress-free breakfast that tastes like a holiday hug.
Use day-old bread for best texture. For dairy-free, use non-dairy eggnog and vegan butter. For gluten-free, use gluten-free bread and flour. Customize with dried fruit, orange zest, or chocolate chips. Letting the casserole chill overnight ensures a creamy, custardy texture. Tent with foil if top browns too quickly. Serve warm with powdered sugar, maple syrup, or berries.
Keywords: eggnog french toast casserole, holiday brunch, Christmas breakfast, easy breakfast casserole, festive breakfast, overnight casserole, brioche french toast, make ahead breakfast