After a *lot* of testing, this is the version I keep coming back to, the one that feels like a warm hug from your oven.

It’s soft and deeply custardy, but never, ever mushy, topped with a caramelized brown sugar streusel that’s pure magic.

Why This Recipe Feels Like a Win

You know that feeling when you nail a recipe on the first try? This casserole gives you that, every single time.

The secret’s in a few smart tweaks, like maple syrup in the custard, which adds a subtle, unforgettable depth that just works.

Ingredients Needed for the Recipe

Gathering everything first makes the process so smooth, trust me. Here’s what you’ll need, and why each one matters.

• Challah Bread (1 loaf): The star. Its rich, sturdy texture soaks up the custard beautifully without turning to mush.
• Eggs (7 large) & Whole Milk (2 cups): The foundation of our rich, velvety custard that sets up perfectly.
• Heavy Cream (½ cup): A splash for extra luxuriousness and a creamier final bite.
• Maple Syrup (¼ cup): My not-so-secret weapon in the custard. It adds a wonderful, nuanced sweetness.
• Vanilla Extract (1 Tbsp): A generous pour for that warm, aromatic flavor we all love.
• Ground Cinnamon & Salt: Cinnamon for classic spice, salt to balance and heighten all the other flavors.
• Sugars (¼ cup each, white & light brown): For sweetness and a hint of molasses depth in the custard base.
• Butter: You’ll need it both melted for the custard and very cold for the topping.
• For the Streusel Topping: All-purpose flour, more light brown sugar, cinnamon, and that cold salted butter.

The Heart of the Matter: Choosing Your Bread

Let’s talk bread for a second, because it truly makes or breaks the dish. Challah is the absolute champion here.

Its eggy richness and firm yet tender crumb are ideal. Brioche is a fantastic second choice if challah plays hard to get.

A day-old loaf is actually perfect, as it absorbs the custard more eagerly without falling apart.

If your bread is very fresh, just cube it and toast the pieces on a baking sheet at 300°F for about 10 minutes to dry them out slightly.

How to make French Toast Casserole?

Step 1: Prep and Soak the Bread

Generously butter a 9x13 inch baking dish. Cut your challah into sturdy one-inch cubes and scatter them evenly in the dish.

In a large bowl, whisk together the melted butter, maple syrup, vanilla, cinnamon, and salt until well combined.

Step 2: Build the Custard

Whisk in both sugars and all seven eggs until the mixture is smooth and homogenous.

Then, slowly stream in the milk and heavy cream while whisking, creating your luxurious, flavorful custard base.

Step 3: Combine and Rest

Pour the custard evenly over the bread cubes. Use a spatula to gently fold and stir, ensuring every piece gets coated.

Now, walk away. Let it sit for at least 15-20 minutes so the bread can drink up all that good custard.

Step 4: Make the Streusel Topping

While it rests, make the topping. In a food processor, pulse the flour, brown sugar, and cinnamon to combine.

Scatter the very cold, cubed butter over the top and pulse until you have sandy crumbs with a few small pebbles.

Step 5: Assemble and Bake

Evenly sprinkle the streusel over the soaked bread. Place the dish on a foil-lined baking sheet to catch any drips.

Bake at 375°F (190°C) for about 50 minutes, until golden brown, set at the edges, and just slightly jiggly in the very center.

Step 6: Serve and Savor

Let it cool for just a few minutes after baking. This helps the custard finish setting perfectly.

Slice it up and serve warm, maybe with an extra drizzle of syrup or a dollop of whipped cream. Pure bliss.

Make-Ahead Magic: Your Future Self Thanks You

This is where the casserole truly shines, becoming the ultimate no-fuss breakfast. You have two brilliant options.

For an overnight version, after soaking the bread, cover the dish tightly and refrigerate it.

Store the streusel separately in a container in the fridge. In the morning, sprinkle it on cold and bake, adding a few extra minutes.

You can also assemble the entire casserole, topping and all, and freeze it before baking.

Thaw it overnight in the fridge, then bake as directed. Easy mornings, here you come.

Tips

A few little notes from my kitchen to yours can make all the difference. Here’s what I’ve learned.

• When making the streusel in a food processor, pulse in short bursts. You want crumbs, not a buttery paste.
• If you don’t have a processor, use a pastry cutter or even two forks to cut the cold butter into the dry ingredients.
• That foil-lined baking sheet underneath isn’t optional. It’s a lifesaver for catching any bubbling overflow.
• Don’t skip the resting time for the soaked bread. It’s crucial for achieving that custardy, not soggy, texture.
• Let the baked casserole rest for 5-10 minutes before serving. It firms up just enough to slice beautifully.

Serving It Up: The Perfect Plate

This casserole is a star all on its own, but it also loves good company on the plate. It’s wonderfully versatile.

For a classic brunch spread, pair it with crispy bacon or savory breakfast sausage links.

A fresh fruit salad or a handful of berries on the side cuts through the richness beautifully.

And for the ultimate indulgence, a scoop of vanilla ice cream turns it into an incredible dessert. Yes, really.