Overnight French Toast Casserole 4 tablespoons stick) unsalted butter, melted cup firmly packed light brown sugar 1 loaf brioche or challah, sliced 1 inches thick (about 1 pounds) 8 large eggs, lightly beaten 1 cup whole milk 1 tables What's For Breakfast, Christmas Breakfast, Breakfast Dishes, Breakfast Recipes, Christmas Morning, Breakfast Potluck, Breakfast Casserole, Vegetarian Breakfast, Morning Breakfast