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French Toast Casserole Recipe
This easy, baked French Toast Casserole Recipe is a delicious, make-ahead breakfast or brunch centerpiece that’s both comforting and crowd-pleasing.
I first whipped up this French toast casserole on a chilly Saturday morning when the kids were home from college—there’s something special about the aroma of cinnamon-spiced custard soaking into thick brioche. This casserole stands out because you prep it the night before (hello, make-ahead magic!), pop it in the oven in the morning, and voilà—everyone’s greeted with warm, golden-brown slices that taste like a hug. It’s perfect for holiday gatherings or a lazy Sunday breakfast, and you can keep it lighter by swapping half-and-half for whole milk or even almond milk if you’re watching dairy. Honestly, I’ve lost count of how many times this simple recipe has saved me when I needed something easy, delicious, and just a touch fancy.
Why You’ll Love This Recipe
- Make-ahead friendly—prep the night before and sleep in!
- Baked (no standing over a hot griddle) so you get free hands for coffee.
- Feeds a crowd—ideal for family gatherings or casual brunch parties.
- Versatile—add berries, nuts, or a splash of vanilla to suit your taste.
- Comforting flavors—warm cinnamon, nutmeg, and a hint of maple syrup.
- Uses day-old bread—zero waste and budget-friendly.
- Kid-approved—my grandkids call it “cinnamon bread pudding” and gobble it up.
- Easily doubled or halved—adjust servings without fuss.
Ingredients
• 1 loaf (about 1 pound) brioche or challah bread, cut into 1-inch cubes (stale or day-old works best)
• 8 large eggs, at room temperature
• 2 cups whole milk (or half-and-half for extra creaminess; almond milk as a dairy-free swap)
• ½ cup pure maple syrup (plus extra for drizzling)
• ¾ cup granulated sugar (or swap half for brown sugar for depth)
• 2 teaspoons pure vanilla extract (look for Nielsen-Massey brand for top flavor)
• 1 teaspoon ground cinnamon (add ¼ teaspoon nutmeg for a warm twist)
• ¼ teaspoon kosher salt
• 2 tablespoons unsalted butter, cut into small pieces (plus more for greasing)
• Optional toppings: fresh berries, toasted pecans, powdered sugar, whipped cream
Ingredient Tips:
– Choose day-old brioche for sturdy cubes that soak without turning to mush.
– Let eggs come to room temp for a fluffier bake.
– If you like a sweeter breakfast casserole, add an extra 2 tablespoons of syrup.
Directions
-
Preheat & Prep
Preheat your oven to 350°F and lightly butter a 9×13-inch casserole dish (glass or ceramic works great). Scatter a handful of cubes on the bottom to check if they stick—if they slide, add a touch more butter. -
Whisk Custard
In a large bowl, whisk together eggs, milk, maple syrup, sugar, vanilla, cinnamon, and salt until smooth and frothy—this ensures your bake is even and bubbly. -
Layer Bread
Gently fold the bread cubes into the custard, pressing down slightly so each piece soaks up that silky mixture. If you spot a dry corner, nudge cubes beneath the surface. -
Add Butter Bits
Dot the top with small butter pieces—these melt into golden pockets, giving the casserole its signature buttery crust. -
Cover & Chill
Cover the dish tightly with foil and refrigerate for at least 4 hours or overnight. (Tip: chilling overnight boosts flavor and texture—custard firms up, bread fully absorbs.) -
Bake to Perfection
Remove foil, place dish on a baking sheet (to catch any drips), and bake for 40–45 minutes until the top is puffed and lightly browned. A knife inserted should come out mostly clean with just a few custard crumbs. -
Rest & Serve
Let the casserole rest for 5–10 minutes—this helps it set. Drizzle with extra maple syrup, scatter fresh berries or pecans, and dust with powdered sugar if you like a pretty finish.
Servings & Timing
• Yield: Serves 8–10 hungry brunchers
• Prep Time: 20 minutes
• Chill Time: 4 hours (or overnight for best results)
• Bake Time: 40–45 minutes
• Total Time: About 5 hours (including chilling) or roughly 1 hour morning-of
Variations
• Berry Bliss: Fold in 1 cup of fresh or thawed frozen blueberries or raspberries before chilling.
• Banana Nut Crunch: Add sliced bananas and ½ cup chopped walnuts; top with a sprinkle of brown sugar.
• Chocolate Lover’s Dream: Toss in ½ cup mini chocolate chips and swap cinnamon for a pinch of cocoa powder.
• Savory Spin: Skip the sugar, stir in ½ cup shredded cheddar, chopped green onions, and a pinch of garlic powder.
• Gluten-Free Friendly: Use gluten-free brioche or thick-cut GF sandwich bread.
• Dairy-Free Swap: Replace milk and half-and-half with your favorite plant-based milk + vegan butter.
Storage & Reheating
• Refrigerate: Store tightly covered for up to 3 days—reheat single servings in the microwave for 30–45 seconds.
• Freeze: Once fully cooled, wrap portions in plastic wrap + foil; freeze up to 2 months. Thaw overnight in the fridge, then warm through in a 325°F oven for 15–20 minutes.
• Make-ahead: Prep the night before; bake the next morning for a hands-off brunch win.
Notes
• Bread Texture: I tested with brioche, challah, and even thick-sliced Texas toast—brioche gave the richest crumb.
• Custard Ratios: If your bread feels dry after chilling, whisk up an extra ¼ cup milk + 1 egg and pour over before baking.
• Browning Tips: If edges brown too quickly, tent with foil halfway through roast.
• Flavor Depth: Stir in a pinch of cardamom or a swirl of bourbon for an adult twist—just a tablespoon!
FAQs
Q: Can I use croissants instead of brioche?
A: Absolutely—day-old croissants create a flakier texture and a slightly buttery flavor.
Q: Why did my casserole turn out soggy?
A: Likely underbaked or not chilled long enough—ensure custard’s absorbed and bake until set.
Q: Can I skip the sugar if I don’t have sweet tooth?
A: You can reduce sugar by half, but bear in mind maple syrup adds both sweetness and moisture.
Q: Is it okay to add frozen fruit directly?
A: Yes, but thaw and pat dry berries first to avoid excess liquid making it watery.
Q: How do I reheat without drying it out?
A: Cover loosely with foil and warm at 325°F for 10–12 minutes—this traps steam and prevents dryness.
Q: Can I swap half-and-half for heavy cream?
A: Sure—using heavy cream makes it ultra-rich, but you may want to cut back on added sugar.
Q: What’s the best bread thickness?
A: Slices about 1 inch thick work perfectly—too thin and they’ll dissolve; too thick and they stay undercooked inside.
Q: How do I get a crisp top?
A: After baking, broil on low for 1–2 minutes—watch closely to avoid burning.
Conclusion
This French Toast Casserole Recipe is your go-to for an easy, baked breakfast or brunch that tastes like a warm hug on a plate. With make-ahead convenience and endless variations, it’s perfect for busy mornings, special occasions, or whenever you crave a comforting, delicious baked treat. Give it a try, leave me a comment below, and don’t forget to explore my Cinnamon Roll French Toast for more brunch inspiration!

French Toast Casserole
Ingredients
- 1 loaf brioche or challah bread cut into 1-inch cubes (stale or day-old works best)
- 8 large eggs at room temperature
- 2 cups whole milk (or half-and-half for extra creaminess; almond milk as a dairy-free swap)
- 1/2 cup pure maple syrup (plus extra for drizzling)
- 3/4 cup granulated sugar (or swap half for brown sugar for depth)
- 2 teaspoons pure vanilla extract (look for Nielsen-Massey brand for top flavor)
- 1 teaspoon ground cinnamon (add 1/4 teaspoon nutmeg for a warm twist)
- 1/4 teaspoon kosher salt
- 2 tablespoons unsalted butter cut into small pieces (plus more for greasing)
- Optional toppings: fresh berries, toasted pecans, powdered sugar, whipped cream
Instructions
- Preheat your oven to 350°F and lightly butter a 9x13-inch casserole dish. Scatter a handful of bread cubes on the bottom to check if they stick.
- In a large bowl, whisk together eggs, milk, maple syrup, sugar, vanilla, cinnamon, and salt until smooth and frothy.
- Gently fold the bread cubes into the custard, pressing down slightly so each piece soaks up the mixture.
- Dot the top with small butter pieces for golden pockets and a buttery crust.
- Cover tightly with foil and refrigerate for at least 4 hours or overnight to enhance flavor and texture.
- Bake for 40-45 minutes until puffed and lightly browned. Let it rest before serving with desired toppings.

