
This luxurious breakfast casserole transforms ordinary French toast into something truly extraordinary. A caramelized sugar base creates that distinctive crème brûlée flavor, while thick slices of French bread soak up a rich custard that bakes to perfection. Each bite delivers the crispy, caramelized bottom reminiscent of the "burnt cream" dessert, paired with a pillowy, custard-soaked interior that melts in your mouth.
Last Christmas morning, I prepared this for my family before gift opening. The house filled with the intoxicating aroma of caramelizing sugar and vanilla while we opened presents. Everyone kept wandering to the kitchen to check when it would be ready, and there was complete silence when we finally sat down to eat - the ultimate compliment to any cook!
Ingredients
- French bread: Thick-cut slices provide structure; day-old bread works perfectly as it better absorbs the custard
- Unsalted butter: Forms the base of the caramel layer; unsalted allows you to control the salt level
- Brown sugar: Creates that signature crème brûlée caramelization; dark brown sugar offers deeper flavor
- Corn syrup: Prevents the caramel from crystallizing, ensuring a smooth texture
- Eggs: Build structure in the custard and create that perfect French toast texture
- Half-and-half: Provides richness without being too heavy; the perfect balance for the custard
- Grand Marnier: Adds subtle orange notes that complement the caramel; can be omitted if preferred
- Vanilla extract: Enhances all the other flavors and adds aromatic depth

Step-by-Step Instructions
- Step 1:
- Create the caramel base - In a small saucepan over medium heat, melt ½ cup unsalted butter. Add 1 cup packed brown sugar and 2 tablespoons corn syrup, stirring constantly until the sugar dissolves completely. Watch carefully - you want the sugar fully dissolved but not burnt. Pour this mixture into a 9x13-inch baking dish, spreading it evenly across the bottom. This caramel layer will bubble up during baking to coat the bread with a delicious, sticky glaze.
- Step 2:
- Prepare the bread - Remove the crusts from 6 thick slices of French bread. This step is optional but creates a more uniform texture. Arrange the bread slices in a single layer over the caramel mixture. If needed, cut some pieces to fill any gaps - you want complete coverage of the caramel layer to ensure every bite has that crème brûlée flavor.
- Step 3:
- Make the custard - In a large bowl, whisk together 5 large eggs, 1½ cups half-and-half, 1 teaspoon vanilla extract, 1 teaspoon Grand Marnier, and ¼ teaspoon salt until smooth and well combined. The custard should be completely homogeneous with no streaks of egg white visible. Pour this mixture evenly over the bread, taking care to cover each piece.
- Step 4:
- Soak overnight - Cover the baking dish with plastic wrap and refrigerate for at least 8 hours or overnight. This resting time is crucial - it allows the bread to fully absorb the custard, resulting in a pudding-like consistency rather than soggy bread. The flavor also develops and deepens during this time.
- Step 5:
- Bring to room temperature - Before baking, remove the casserole from the refrigerator and let it stand at room temperature for about 30 minutes. This ensures even cooking and helps the caramel melt properly during baking.
- Step 6:
- Bake to golden perfection - Preheat your oven to 350°F (175°C). Remove the plastic wrap and bake the casserole uncovered for 35-40 minutes until puffed and golden brown. The center should be set but still slightly jiggly - it will continue to firm up as it cools. The caramel will bubble around the edges, creating that signature crème brûlée finish.
- Step 7:
- Serve with flair - Allow the casserole to cool for about 5 minutes before serving. This brief rest lets the caramel set slightly, making it easier to serve. Use a spatula to carefully lift out portions, making sure to spoon extra caramel from the bottom of the dish over each serving.
Make It Your Own
While this classic version is divine, you can easily customize it. Add a teaspoon of cinnamon to the custard mixture for a warming spice note. Scatter fresh berries over the top during the last 10 minutes of baking for a fruity contrast. For a deeper flavor, substitute dark rum for the Grand Marnier or add a teaspoon of espresso powder to the custard mixture.

Perfect Pairings
This rich casserole pairs beautifully with fresh fruit to cut through the sweetness. Citrus segments like orange or grapefruit are particularly complementary. If serving for brunch, a crisp mimosa makes an excellent beverage pairing. For coffee lovers, a strong cup of coffee balances the sweetness perfectly.
Presentation Tips
For special occasions, dust the top lightly with powdered sugar just before serving for an elegant finish. Fresh mint leaves make a beautiful garnish that adds a pop of color. If you're feeling particularly decadent, offer a small pitcher of warm maple syrup on the side, though many will find the caramel base provides plenty of sweetness.
The first time I made this, I was concerned about the amount of caramel seeming excessive. Trust the process - during baking, it transforms into the perfect amount of sauce that makes this dish so special. Some of the caramel will remain in the bottom of the dish, creating a delicious sauce you can spoon over each serving.
This Crème Brûlée French Toast Casserole has become my signature dish for holiday mornings and special brunches. There's something magical about transforming simple ingredients into something that tastes so luxurious. The blend of creamy custard, caramelized sugar, and soft bread creates a breakfast experience that feels indulgent yet comforting. When guests take that first bite and close their eyes in appreciation, I know it was worth the minimal effort this make-ahead wonder requires.
Frequently Asked Questions
- → Can I make this without the orange liqueur?
- Absolutely! You can substitute orange extract (use just 1/4 teaspoon) or orange zest (1-2 teaspoons), or simply omit it completely. The dish will still be delicious.
- → What type of French bread works best?
- A day-old French baguette works perfectly as it absorbs the custard well without falling apart. You can also use brioche or challah for an even richer result.
- → Can I freeze this French toast casserole?
- Yes, you can freeze it either before or after baking. If freezing before baking, thaw completely in the refrigerator overnight before baking. If freezing after baking, reheat covered at 350°F until warm throughout.
- → What can I serve with this French toast?
- Fresh berries provide a nice contrast to the sweetness. A dollop of whipped cream or a side of crispy bacon also pairs wonderfully. Some people enjoy a light drizzle of maple syrup, though the casserole is quite sweet on its own.
- → Why is my French toast soggy in the middle?
- Make sure to use day-old bread which absorbs the custard better. Also, bring the casserole to room temperature before baking, and ensure your oven is properly preheated. If needed, you can bake it a bit longer, covering with foil if the top gets too brown.