This Overnight Brioche French Toast Casserole is fluffy on the inside and crispy on the outside and really easy to make. It's the perfect make-ahead breakfast for a crowd. Enjoy during the holidays or as any weekend brunch.
Lightly grease a 13x9 inch baking or casserole dish. Cut brioche loaf into ½ inch slices and place in the dish.
In a large bowl, whisk together eggs, milk, cinnamon, vanilla and sugar. Pour over the slices of brioche, making sure to cover evenly. Make sure the bread is fully coated.
Cover the dish with aluminum foil and place in the fridge to soak overnight.
When ready to bake, remove from the fridge, preheat the oven to 350 degrees F and bake for 25 minutes covered with foil. Remove foil and bake for another 25 minutes until golden brown.
Let cool for 5 minutes before slicing. Serve with a sprinkle of powdered sugar, maple syrup and fresh berries. Enjoy!
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Notes
If you are not soaking the bread overnight, you may want to soak it in a separate bowl before transferring it to the baking dish. If the bread doesn't have enough time to soak up the milk mixture, it could become soggy.
Make sure to use quality bread. I recommend buttery brioche bread.
I HIGHLY recommend letting the casserole sit overnight. The longer it sits, the better it tastes.
To freeze this easy French toast bake: Prepare the casserole in a freezer-safe baking pan and bake as outlined below. Cool the French toast completely, then cover it with a lid or aluminum foil and freeze for 2-3 months.
Defrost it completely in the fridge the day before baking and reheat at 350 degrees F uncovered for 20-30 minutes.
You can also freeze the French toast uncooked. Allow it to defrost and then bake it according to the directions.
Store leftovers in the baking dish or airtight container for a few days.
Reheat in the microwave for a few minutes for individual servings or in the oven for 5-10 minutes.