Easy Overnight French Toast

Overnight french toast casserole topped with a brown sugar crumble and berries. A delicious spin on the classic and perfect for holiday gatherings or Sunday brunch!

I love traditional french toast, but this overnight casserole version is my go-to when serving a crowd. You can easily make it in advance to free up some time on the morning of your big gathering. It’s so nice to already have breakfast taken care of!
One of my favorite parts about the holidays is the food. I love cooking for family and friends and enjoying a delicious meal together. However on days like Christmas morning, the last place I want to be is in the kitchen.

1 loaf day old french bread (sour dough or challah work great too, about 10 cups)
2 cups whole milk
7 large eggs
3/4 cup packed brown sugar
3/4 teaspoon cinnamon
Pinch of kosher salt
1/2 cup salted butter (cubed)
1/2 cup all-purpose flour
1/2 cup packed brown sugar
1 cup berries (I used frozen)

Grease a 9×13″ casserole dish and set aside.
Cut the french bread loaf into cubes and layer evenly in the pan. You should have about 2 layers. Beat the milk, eggs, brown sugar, cinnamon and salt in a medium size bowl. Then pour evenly over the bread, making sure it covers each piece. Cover with foil and refrigerate over night, or at least 3 hours.

In a medium size bowl, mix together the butter, flour and brown sugar with a pastry cutter or two knives. Use your hands if needed to make crumbs. Cover and refrigerate.
When ready to bake, preheat oven to 350°F. Add the crumb topping on top of the bread and then evenly disperse the berries on top. Bake uncovered for 50-60 minutes, or until the top is lightly browned and the center is cooked through.
Enjoy by itself or topped with syrup.