The recipe below is wonderful.  
raline topping is optional. I usually just have some maple syrup on hand. Fry up some bacon and you are good to go!1-2 loaves challah bread8 large eggs2 cups half-and-half1 cup milk2 tablespoons granulated sugar1 teaspoon vanilla extract1/4 teaspoon ground cinnamon1/4 teaspoon ground nutmegDash saltPraline Topping, recipe followsMaple syrupPraline Topping:1/2 pound (2 sticks) butter1 cup packed light brown sugar1 cup chopped pecans2 tablespoons light corn syrup1/2 teaspoon ground cinnamon1/2 teaspoon ground nutmegDirectionsSlice bread into 20 slices, 1-inch each. Arrange slices in a generously buttered 9 by 13-inch flat baking dish in 2 rows, overlapping the slices. In a large bowl, combine the eggs, half-and-half, milk, sugar, vanilla, cinnamon, nutmeg and salt and beat with a rotary beater or whisk until blended but not too bubbly. Pour mixture over the bread slices, making sure all are covered evenly with the milk-egg mixture. Spoon some of the mixture in between the slices. Cover with foil and refrigerate overnight.The next day, preheat oven to 350 degrees F.Spread Praline Topping evenly over the bread and bake for 40 minutes, until puffed and lightly golden. Serve with maple syrup.Praline Topping:Combine all ingredients in a medium bowl and blend well. Makes enough for Baked French Toast Casserole.Recipe courtesy of Paula Deen 4951