Baked French Toast Casserole is like your favorite weekend breakfast all rolled into one easy dish. It’s soft, custardy bread baked with sweet cinnamon and a touch of vanilla, topped with a crisp, golden crust that’s just the right amount of crunchy. This casserole makes the classic French toast flavors even better by baking it all together instead of cooking slices one by one.
I love making this casserole when I have guests over because it’s so simple to prepare ahead of time. I usually mix the eggs, milk, and spices the night before, pour it over the bread, and let it soak overnight in the fridge. When it’s time to bake, the aroma that fills the kitchen is pure comfort. It’s like waking up to a warm hug in food form, and honestly, it never lasts long once it’s out of the oven.
My favorite way to serve this dish is with a drizzle of maple syrup and a handful of fresh berries for a pop of color and freshness. Sometimes, I’ll sprinkle some chopped nuts or a little powdered sugar on top for extra texture and sweetness. It’s the perfect breakfast treat that can easily double as dessert, and I know I’m not the only one who looks forward to leftovers the next morning!
Key Ingredients & Substitutions
Bread: Day-old brioche or challah is perfect here because they soak up the custard but keep their shape. If you don’t have these, thick slices of French bread or even a sturdy sourdough work well too.
Milk & Cream: Whole milk and heavy cream make the custard rich and creamy. You can swap cream for more milk if you want it lighter. Non-dairy milks like almond or oat also work but may change the flavor slightly.
Eggs: Eggs are key for setting the custard. Using large eggs ensures the mixture sets just right. For a dairy-free version, there’s no easy swap here, but you could try a vegan custard mix.
Vanilla & Cinnamon: These bring classic warm flavor notes. You can add nutmeg or cardamom for a slight twist or leave out the cinnamon if preferred.
Butter: Melted butter drizzled on top creates a golden, crispy crust. If you want to skip butter, a little oil can do, but butter’s flavor really shines here.
How Do You Get the Perfect Custardy Texture Without a Soggy Bottom?
Soaking the bread is the secret to moist but not soggy casserole. Here’s how to do it right:
- After mixing the egg custard, pour it over the bread and gently press the bread pieces down to absorb the liquid.
- Cover and refrigerate for at least 2 hours or overnight. This gives the bread time to soak the custard deeply.
- Before baking, drizzle melted butter on top for a crisp top layer.
- Bake uncovered so steam can escape, which helps the top get golden and slightly crunchy.
Following these steps helps you avoid a soggy bottom while keeping the inside soft and creamy—just how baked French toast casserole should be.
Equipment You’ll Need
- 9×13-inch baking dish – perfect size for even baking and easy serving.
- Mixing bowl – to whisk your egg and milk mixture smoothly.
- Whisk – helps combine ingredients without lumps.
- Measuring cups and spoons – keep the flavors balanced and consistent.
- Aluminum foil – covers the dish while soaking to prevent fridge odors.
Flavor Variations & Add-Ins
- Add fresh sliced strawberries or chopped apples for a fruity twist that adds natural sweetness.
- Sprinkle chopped pecans or walnuts on top before baking for a nice crunch and nutty flavor.
- Mix in chocolate chips into the bread cubes for a sweeter, dessert-like version.
- Use cream cheese dollops between bread layers for creamy texture and tangy taste.
How to Make Baked French Toast Casserole
Ingredients You’ll Need:
For the Casserole:
- 8 cups bread cubes (day-old brioche or challah works best)
- 6 large eggs
- 2 cups whole milk
- 1/2 cup heavy cream
- 3/4 cup granulated sugar
- 2 teaspoons vanilla extract
- 1 teaspoon ground cinnamon
- 1/4 teaspoon salt
- 1/4 cup unsalted butter, melted
For Serving:
- Powdered sugar, for dusting
- Maple syrup
- Fresh berries (blueberries, raspberries, strawberries)
How Much Time Will You Need?
Prepare the casserole with about 15 minutes of active prep time. Then, plan for at least 2 hours (or overnight) of soaking time in the refrigerator. Baking takes about 45 to 55 minutes until golden and set. All together, you should expect roughly 3 hours, including soaking and baking, to get this delicious dish ready.
Step-by-Step Instructions:
1. Prepare the Baking Dish and Bread:
Start by preheating your oven to 350°F (175°C). Grease a 9×13-inch baking dish with butter to keep the casserole from sticking. Then, spread the bread cubes evenly across the dish, making sure they fill the space nicely.
2. Make the Custard Mixture:
In a large mixing bowl, whisk together the eggs, whole milk, heavy cream, sugar, vanilla extract, cinnamon, and salt until smooth and combined. This will be your custard that soaks into the bread.
3. Combine and Soak:
Carefully pour the custard mixture over the bread cubes, pressing gently on the bread so it soaks up as much liquid as possible. Drizzle the melted butter evenly over the top for a nice flavorful crust. Cover the dish tightly with foil and refrigerate for at least 2 hours. For best results, soak overnight to let the bread fully absorb the custard.
4. Bake Your Casserole:
Once soaked, remove the foil and bake the casserole in your preheated oven, uncovered, for 45 to 55 minutes. Look for a golden-brown top and a set custard in the middle — if a knife inserted in the center comes out clean, it’s done!
5. Serve with Sweet Toppings:
Let the casserole cool for a few minutes. Then, dust generously with powdered sugar and serve warm with maple syrup and fresh berries. Enjoy this cozy, sweet dish that’s perfect for breakfast, brunch, or even dessert!
Can I Use Frozen Bread for This Recipe?
Yes, you can use frozen bread cubes! Just make sure to thaw them completely and pat dry if needed so they soak up the custard properly without becoming too soggy.
Can I Prepare the Casserole the Night Before?
Absolutely! It’s best to assemble the casserole the night before and let it soak in the fridge overnight. This helps the bread absorb all the custard flavors for a richer dish.
How Should I Store Leftovers?
Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the oven or microwave until warmed through for the best texture.
Can I Make This Recipe Dairy-Free?
You can substitute the milk and cream with your favorite non-dairy alternatives like almond or oat milk, and use a dairy-free butter or coconut oil. The texture may vary slightly but it will still be delicious!
