First Step: Start by greasing a 13×9-inch baking pan with butter to ensure your baked French toast doesn’t stick and bakes evenly.

Second Step: Tear or cut 1 loaf of crusty sourdough or French bread into chunks or cubes, then distribute them evenly in the prepared pan for a uniform base in your simple baked French toast.

Third Step: In a large bowl, whisk together 8 large eggs, 2 cups whole milk, 1/2 cup heavy cream, 1/2 cup granulated sugar, 1/2 cup firmly packed brown sugar, and 2 Tbsp. vanilla extract until well combined, creating the custard that soaks into the bread for this baked French toast recipe.

Fourth Step: Pour the custard mixture evenly over the bread in the pan, making sure every piece is covered to allow for maximum absorption in your easy make ahead breakfast. At this point, cover the pan tightly and refrigerate it overnight if possible, or proceed to baking immediately for added convenience.

Fifth Step: For the streusel topping, in a separate bowl, stir together 1/2 cup all-purpose flour, 1/2 cup firmly packed brown sugar, 1 tsp. ground cinnamon, 1/4 tsp. salt, and freshly grated nutmeg to taste if desired, then add 1/2 cup cold butter cut into small pieces and mix with a pastry cutter or fork until it resembles fine pebbles.

Sixth Step: Store the streusel topping in a plastic bag in the refrigerator until needed, ensuring it stays cold for the best texture in your baked French toast.

Seventh Step: Preheat your oven to 350°F (175°C) when you’re ready to bake, giving the dish a chance to reach room temperature if it was refrigerated.

Eighth Step: Remove the casserole from the fridge if it was chilled, then evenly sprinkle the prepared streusel topping over the top, adding that signature crunch to your simple French toast.

Ninth Step: Bake uncovered for 45 minutes for a softer texture or up to 1 hour or more for a firmer, crisper result, adapting the time based on your preference for this baked French toast recipe.

Final Step: Once baked, let it cool slightly, then scoop portions into bowls and top with butter, warm syrup, and 1 cup fresh blueberries for a delightful finish to your easy make ahead breakfast. For vegetarians, ensure all toppings align, and consider adding kale pesto as a fresh twist if you’re looking for more green options.