Baked French Toast Casserole – Easy Make-Ahead Breakfast

If you love the cozy, sweet comfort of French toast but don’t love standing over the stove flipping slices, this Baked French Toast Casserole is going to be your new favorite. It’s soft in the middle, slightly crisp on top, and full of warm vanilla-cinnamon goodness.

The best part? You can prep the whole thing the night before and just pop it in the oven in the morning. Whether it’s a weekend treat, holiday brunch, or just a busy weekday, this casserole is both practical and totally crave-worthy.

🥖 What You’ll Need (Ingredients)

1 loaf of day-old bread (brioche, challah, or French bread work best)
6 large eggs
2 cups whole milk (or your preferred dairy-free alternative)
1/4 cup granulated sugar
1 teaspoon vanilla extract
1 teaspoon ground cinnamon
1/4 teaspoon ground nutmeg
1/2 teaspoon salt
1 tablespoon unsalted butter, melted
Powdered sugar (optional, for dusting)
Maple syrup (optional, for serving)

💡 Tip: Day-old bread absorbs custard better and helps prevent sogginess.

How to Make It (Step-by-Step)

Step 1: Prep the bread
Cut the bread into 1-inch cubes or slices. Add them to a greased 9×13-inch baking dish. Cubes give a rustic, scoopable texture, while slices look more traditional.

Step 2: Make the custard
In a large bowl, whisk together eggs, milk, sugar, vanilla, cinnamon, nutmeg, and salt until smooth.

Step 3: Combine
Pour the custard over the bread evenly. Gently press the bread down with the back of a spoon to help it soak everything in.

Step 4: Chill
Cover tightly with plastic wrap and refrigerate for at least 2 hours or overnight. The longer it soaks, the better the texture.

Step 5: Bake
When ready, preheat your oven to 350°F (175°C). Drizzle melted butter on top and bake for 35–40 minutes until puffed, golden, and slightly crisp on the edges.

Step 6: Serve
Let it cool for 5–10 minutes. Dust with powdered sugar, drizzle maple syrup, and dig in while warm!

Time & Servings

Prep Time: 10 minutes
Chill Time: 2+ hours (or overnight)
Bake Time: 35–40 minutes
Total Time: ~50 minutes (plus chill)
Yields: 8 hearty servings

This is the kind of dish that fills the kitchen with that cozy, bakery-style aroma and keeps everyone coming back for seconds.

Storage & Reheating Tips

Got leftovers? You’re in luck.

Fridge: Store in an airtight container up to 3 days.
Freezer: Wrap tightly and freeze for up to 3 months.
Reheat: Warm in a 350°F oven for 15–20 mins (fridge) or 30 mins (frozen). The oven keeps the top crispy—microwave will make it softer.

Nutrition Info (Per Serving)

(Approximate, varies by ingredients)

Calories: 280–300
Fat: 12g
Carbs: 35g
Protein: 7g
Sugar: ~18g

Want to lighten it up? Use low-fat milk and reduce sugar slightly. It’ll still be delicious.

Recipe Notes & Variations

Bread matters: Brioche gives you a rich, buttery result. French bread holds up well too. Just make sure it’s not too fresh.
Dairy-free option: Almond, oat, or coconut milk all work. Use vegan butter or coconut oil for the drizzle.
Want more crunch? Top with chopped pecans or walnuts before baking.
Like it sweeter? Sprinkle cinnamon sugar over the top before baking or swirl in a bit of cream cheese filling.

Pro Tips for Perfect Casserole Every Time

Soaking is key. Don’t skip chilling! Let the bread soak thoroughly for that custardy center.
Don’t skimp on vanilla or cinnamon. They really bring the flavor together.
Make it fruity. Add fresh or frozen berries, banana slices, or thinly sliced apples between layers of bread.
Hosting brunch? Serve this with crispy bacon, fresh juice, and coffee for a crowd-pleaser menu.