Taste of Home offers a recipe for overnight French toast, which is called overnight French toast with praline syrup. Begin making this recipe by lightly beating 9 eggs in a large bowl.
Mix in 3 cups of half-and-half cream, 1/3 cup of sugar, 1 1/2 teaspoons of vanilla extract, a ? teaspoon of ground nutmeg and 1 1/2 teaspoons of rum extract, if desired. Place a single layer of ?-inch-thick French bread slices in two well-greased 15-inch x 10-inch x 1-inch baking pans. In each pan, pour the egg mixture over the layer of bread. Turn over the bread so that each side is coated with egg mixture. Cover pans and refrigerate overnight.
When ready to bake, first let it stand at room temperature for 30 minutes. Uncover the pans, and bake at 400 F for 20 to 22 minutes or until golden.
Meanwhile, bring 1 1/2 cups of packed brown sugar, a ? cup of light corn syrup and a ? cup of water to boil in saucepan. Reduce heat, and let simmer for 3 minutes. Add a ? cup of toasted chopped pecans and 2 tablespoons of butter; simmer for two more minutes. Serve the praline syrup over the baked French toast.
This recipe makes 10 to 12 servings. It can also be frozen instead of refrigerated and stored until ready to use.