Warm, custardy, and impossibly simple to pull together, this baked French toast casserole turns day-old brioche or French loaf into a crowd-pleasing brunch centerpiece. It’s the sort of recipe you can prep the night before, bake the next morning, and spend your time sipping coffee instead of standing at the stove. If you like hands-off oven breakfasts and weekend-worthy comfort food, you might also enjoy a savory oven-baked option like Baked Boursin Salmon alongside a sweet dish for a hearty brunch spread.
Why you’ll love this dish
This casserole delivers all the best parts of classic French toast—rich egg custard, soft pillowy inside, and a crisp, buttery top—without flipping a single slice. It’s great for feeding a crowd, stretches budget-friendly bread, and is forgiving with timing: a long overnight soak makes underbaked centers rare and texture consistent.
“Perfect for holidays and lazy weekends—everyone can serve themselves, it reheats beautifully, and the topping gets caramelized just right.” — home kitchen test
Reasons to try it:
- Feeds a crowd with minimal active time.
- Uses day-old bread so you get great texture from stale brioche or French loaf.
- Make-ahead friendly: assemble the night before and bake in the morning.
- Flexible: swap spices, add citrus, or fold in fruit to suit your mood.
Step-by-step overview
This recipe is straightforward: cube bread, whisk a rich egg-milk custard, soak the bread, top with a brown-sugar-butter mixture, and bake until set and golden. Key moments to watch: a full soak (2 hours to overnight) so the custard penetrates the bread, and a final bake long enough for the center to set (a gentle jiggle is okay). You’ll finish with a dusting of powdered sugar or a drizzle of maple syrup for classic French toast sweetness.
What you’ll need
- 1 loaf bread (brioche or French recommended; day-old is ideal) — cut into 1–2 inch cubes
- 8 large eggs
- 1 1/2 cups milk (whole milk recommended for richness; half-and-half for extra creaminess)
- 2 tsp ground cinnamon
- 1 tbsp vanilla extract
- 1/4 cup granulated sugar
- 1/2 tbsp orange juice (optional — brightens the custard)
- 4 tbsp unsalted butter, melted (for the topping)
- 2 tbsp light brown sugar (for the topping)
- 1 tbsp granulated sugar (for the topping)
- 1 tsp ground cinnamon (for the topping)
- 1/8 tsp salt (for the topping)
- Maple syrup and powdered sugar, for serving
Substitutions and notes:
- Use challah or day-old sandwich bread if you can’t find brioche; denser breads will soak differently—adjust soak time.
- For dairy-free, swap the milk for almond or oat milk and use a vegan butter substitute for the topping.
- Want extra richness? Replace 1/2 cup of milk with heavy cream.
Step-by-step instructions
- Prep the pan and bread: Spray a 9×13-inch baking dish with non-stick cooking spray. Tear or cut the loaf into 1–2 inch cubes and place them in a large bowl.
- Make the custard: In a separate bowl, whisk together the eggs, milk, 1/4 cup granulated sugar, 2 tsp cinnamon, vanilla extract, and optional orange juice until smooth and uniform.
- Soak the bread: Pour the egg mixture over the bread cubes and gently fold to coat every piece. Transfer the coated bread to the prepared baking dish, cover tightly, and refrigerate for at least 2 hours or up to overnight—overnight yields the best texture.
- Preheat and prepare topping: Preheat the oven to 375°F (190°C). Combine the melted butter, 2 tbsp light brown sugar, 1 tbsp granulated sugar, 1 tsp cinnamon, and 1/8 tsp salt. Spoon or scatter this mixture evenly over the soaked bread.
- Bake: Place the dish on the middle rack and bake for 35–45 minutes. You’re looking for a golden, caramelized top and a center that’s set—no runny liquid when jiggled. If the top browns too quickly, tent with foil.
- Rest and serve: Let the casserole cool for about 10 minutes, then dust with powdered sugar or drizzle with maple syrup. Slice into squares and serve warm.
Best ways to enjoy it
This casserole is classic with maple syrup and a dusting of powdered sugar, but there are plenty of ways to elevate the plate:
- Serve with fresh berries, whipped cream, or a compote for brightness.
- Add a sprinkle of toasted pecans or sliced almonds for crunch.
- For a savory-sweet brunch spread, pair with smoked or roasted fish; try accompanying it with Baked Cajun Salmon with Avocado Lime Sauce for contrast.
- Make individual portions in ramekins for elegant single-serve presentations.
- Add a side of crisp bacon or sausage links for balance.
Storage and reheating tips
- Refrigerator: Store leftovers covered or in an airtight container for up to 3–4 days.
- Freezer: Cool completely, then wrap tightly with plastic and foil or place in a freezer-safe container for up to 2 months. Thaw overnight in the fridge before reheating.
- Reheating: Reheat single servings in the microwave for 30–60 seconds, or place slices on a baking sheet and warm in a 350°F oven for 10–15 minutes to refresh the topping’s crispness. If frozen, reheat straight from thawed in a 350°F oven for about 15–20 minutes.
- Food safety: Reheat until the center reaches 165°F and steam rises. Discard if left at room temperature for more than 2 hours.
Helpful cooking tips
- Use day-old bread: Fresh bread will collapse and become gummy; stale bread soaks without falling apart.
- Cube size matters: 1–2 inch cubes give the ideal custard-to-bread ratio. Larger chunks can remain under-soaked; smaller pieces can get mushy.
- Don’t skimp on soak time: At least 2 hours is okay, but overnight produces the most evenly custardy interior.
- Even topping distribution: Spoon the butter-sugar topping in dollops rather than pouring it—this creates pockets of caramelized richness.
- Watch the bake: If the top is golden too early, loosely tent with foil to let the center finish cooking. A slight jiggle indicates a set custard.
Creative twists
- Berry-studded: Fold in 1 to 1 1/2 cups of fresh or thawed berries before baking. They add juiciness and color.
- Pumpkin spice version: Replace cinnamon with pumpkin pie spice and fold in 1/2 cup pumpkin puree for fall flair. Reduce added sugar slightly.
- Apple-caramel: Toss diced apples with cinnamon and a touch of lemon before mixing with the bread. Use a streusel topping in place of the butter-sugar rub.
- Savory take: Skip sugar, add grated Gruyère and chopped herbs, and serve as a strata-style brunch casserole.
- Gluten-free: Use gluten-free brioche-style bread; watch soak time as GF breads sometimes absorb liquid differently.
Common questions
Q: Can I use fresh bread instead of day-old?
A: Fresh bread will absorb custard too quickly and can become mushy. If that’s all you have, dry it in a low oven (250°F) for 10–20 minutes until slightly dried, then proceed.
Q: How long should I let it soak if I’m short on time?
A: Two hours is the minimum. You can speed absorption slightly by cutting the bread smaller, but overnight refrigeration gives the best texture.
Q: Can I assemble this the night before and bake in the morning?
A: Yes—that’s the ideal approach. Keep it covered in the fridge so the top doesn’t dry out.
Q: Can I freeze the whole casserole before baking?
A: Yes. Assemble in a freezer-safe dish, cover tightly, and freeze. When ready, bake from frozen adding 10–20 minutes to the bake time and covering with foil if the top browns too fast.
Q: Is it safe to eat if the center is slightly jiggly?
A: A very slight jiggle is fine; it will continue to set as it rests. However, the center should not be runny. If unsure, test with a thermometer—custard should reach about 160–165°F for safety.
Q: How can I make the topping extra crisp?
A: Sprinkle an extra tablespoon of brown sugar or some panko mixed with the butter-brown sugar mixture for added texture before baking.
Baked French Toast Casserole
- Total Time: 55 minutes
- Yield: 8 servings
- Diet: Vegetarian
Description
This baked French toast casserole transforms day-old brioche or French loaf into a warm, custardy, crowd-pleasing brunch centerpiece.
Ingredients
- 1 loaf brioche or French bread, cut into 1–2 inch cubes
- 8 large eggs
- 1 1/2 cups whole milk
- 2 tsp ground cinnamon
- 1 tbsp vanilla extract
- 1/4 cup granulated sugar
- 1/2 tbsp orange juice (optional)
- 4 tbsp unsalted butter, melted (for the topping)
- 2 tbsp light brown sugar (for the topping)
- 1 tbsp granulated sugar (for the topping)
- 1 tsp ground cinnamon (for the topping)
- 1/8 tsp salt (for the topping)
- Maple syrup and powdered sugar, for serving
Instructions
- Prep the pan and bread: Spray a 9×13-inch baking dish with non-stick cooking spray. Tear or cut the loaf into 1–2 inch cubes and place them in a large bowl.
- Make the custard: In a separate bowl, whisk together the eggs, milk, 1/4 cup granulated sugar, 2 tsp cinnamon, vanilla extract, and optional orange juice until smooth and uniform.
- Soak the bread: Pour the egg mixture over the bread cubes and gently fold to coat every piece. Transfer the coated bread to the prepared baking dish, cover tightly, and refrigerate for at least 2 hours or up to overnight.
- Preheat and prepare topping: Preheat the oven to 375°F (190°C). Combine the melted butter, light brown sugar, granulated sugar, cinnamon, and salt. Spoon or scatter this mixture evenly over the soaked bread.
- Bake: Place the dish on the middle rack and bake for 35–45 minutes until golden and set.
- Rest and serve: Let the casserole cool for about 10 minutes, then dust with powdered sugar or drizzle with maple syrup and slice into squares.
Notes
Use day-old bread for the best texture. Leftovers can be stored in the refrigerator for 3–4 days or frozen for up to 2 months.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Category: Brunch
- Method: Baking
- Cuisine: French