Table of Contents
Introduction
This overnight eggnog French toast casserole is a no-fuss morning win that does most of the work while you sleep. Cubed brioche or challah soaks in a spiced eggnog custard for a golden, pull-apart bake that reheats well. It’s great for holiday mornings, quick weekend brunches, or when you need a hands-off crowd pleaser. For other simple make-ahead ideas check out French onion chowder for inspiration.

Why This Recipe Works
This recipe relies on soak time to turn day-old bread into a tender, custardy center without fiddly steps. Using brioche or challah adds rich texture so you get a soft interior and crisp top after baking. Eggnog replaces milk and spices in one go, cutting down on ingredient prep. The overnight rest lets flavors meld and saves precious morning minutes. Brown sugar in the custard gives a gentle caramel note that browns nicely in the oven. Overall it is low effort with high payoff for busy hosts and early risers.
Flavor and Texture
The eggnog lends a sweet, spiced base with cinnamon and nutmeg layered into every bite. Brioche or challah soaks fully and yields a custardy interior while the edges toast to a light crisp. Brown sugar lifts the caramel flavor, and a powdered sugar dusting brightens the finish. The bake holds together yet breaks apart easily for serving. Expect warm, cozy flavors and a comforting, pudding like texture that still feels like classic French toast.
Ingredients
– 1 loaf of brioche or challah bread, cut into cubes
– 6 large eggs
– 2 cups eggnog
– 1 teaspoon vanilla extract
– 1 teaspoon ground cinnamon
– 1/2 teaspoon ground nutmeg
– 1/4 cup brown sugar
– Butter for greasing
– Powdered sugar for serving (optional)
Step by Step Instructions
1. Grease a 9×13 inch baking dish with butter.
2. Place the bread cubes in the dish.
3. In a bowl, whisk together the eggs, eggnog, vanilla, cinnamon, nutmeg, and brown sugar.
4. Pour the eggnog mixture over the bread cubes, ensuring all pieces are soaked.
5. Cover with plastic wrap and refrigerate overnight.
6. Preheat the oven to 350°F (175°C).
7. Remove the cover and bake for 45-50 minutes or until golden and fluffy.
8. Let cool slightly before serving. Dust with powdered sugar if desired.
Quick Tips and Shortcuts
Use slightly stale bread so it absorbs custard without becoming mushy; day-old brioche is perfect. If you are short on time, cut the bread into larger cubes to reduce the chance of over soaking. Swap store bought eggnog for homemade nonalcoholic versions if you prefer control over sweetness. Prep the night before and pop into the oven right after you wake up for a hands-off morning. For an extra crisp top, sprinkle a little extra brown sugar on top before baking, and serve with fresh fruit.
Storage and Meal Prep
Store leftovers covered in the refrigerator for up to three days. Reheat individual portions in the oven at 350°F until warmed through to keep texture, or use a microwave for a faster option. You can freeze portions wrapped tightly and reheat from frozen at low oven heat. This casserole is excellent for making ahead for holiday guests or weekly meal prep.
Short Closing Note
This casserole keeps breakfast simple and impressive with minimal active time. It’s ideal when you need a warm, ready to serve dish after a busy night.
Conclusion
For a reliable reference and extra tips on this exact method, see the original inspiration at Overnight Eggnog French Toast Casserole • FIVEheartHOME.
FAQ
Can this be made in under 30 minutes?
Yes, the recipe is designed to be quick and efficient.
Does it work for meal prep?
Most versions store well for one to three days.
Can I customize the ingredients?
Yes, simple swaps can be made for convenience or dietary needs.
Overnight Eggnog French Toast Casserole
This easy overnight eggnog French toast casserole combines brioche or challah, an eggnog custard, and warm spices, perfect for holiday breakfasts and weekend brunches.
- Total Time: 65 minutes
- Yield: 8 servings 1x
Ingredients
- 1 loaf of brioche or challah bread, cut into cubes
- 6 large eggs
- 2 cups eggnog
- 1 teaspoon vanilla extract
- 1 teaspoon ground cinnamon
- 1/2 teaspoon ground nutmeg
- 1/4 cup brown sugar
- Butter for greasing
- Powdered sugar for serving (optional)
Instructions
- Grease a 9×13 inch baking dish with butter.
- Place the bread cubes in the dish.
- In a bowl, whisk together the eggs, eggnog, vanilla, cinnamon, nutmeg, and brown sugar.
- Pour the eggnog mixture over the bread cubes, ensuring all pieces are soaked.
- Cover with plastic wrap and refrigerate overnight.
- Preheat the oven to 350°F (175°C).
- Remove the cover and bake for 45-50 minutes or until golden and fluffy.
- Let cool slightly before serving. Dust with powdered sugar if desired.
Notes
For extra crispiness, sprinkle a little extra brown sugar on top before baking.
- Prep Time: 15 minutes
- Cook Time: 50 minutes
- Category: Breakfast
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Nutrition
- Serving Size: 1 serving
- Calories: 400
- Sugar: 15g
- Sodium: 300mg
- Fat: 20g
- Saturated Fat: 10g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 45g
- Fiber: 2g
- Protein: 10g
- Cholesterol: 150mg
