Overnight Eggnog French Toast Casserole

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A festive baked French toast casserole soaked in rich eggnog and spiced with nutmeg and cinnamon, perfect for a cozy Christmas morning. This american-inspired christmas ready in about 65 minutes combines thick-cut brioche bread, cubed, eggnog, large eggs into a breakfast that fuels the morning without the midday crash — make-ahead-friendly and balanced enough to anchor the first meal of the day. Each serving lands at about 350 calories and feeds 8, so it sits comfortably in a weekly breakfast rotation alongside fruit, yogurt, or coffee. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 50 min Serves 8 American cuisine 350 cal/serving
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Ingredients

Instructions

  1. Step 1: Grease a 9x13-inch baking dish with 1 tbsp unsalted butter. Spread 8 cups of cubed thick-cut brioche bread evenly in the dish.
  2. Step 2: In a large mixing bowl, whisk together 2 cups eggnog, 6 large eggs, 1/2 cup granulated sugar, 1 tsp ground cinnamon, 1/2 tsp ground nutmeg, and 1 tsp pure vanilla extract until smooth and fragrant.
  3. Step 3: Pour the eggnog mixture evenly over the bread cubes, pressing gently with a spatula to make sure all bread is soaked. Drizzle 1 tbsp melted unsalted butter over the top.
  4. Step 4: Cover tightly with plastic wrap and refrigerate overnight (at least 8 hours) to allow the bread to absorb the custard.
  5. Step 5: Preheat oven to 350°F. Remove plastic wrap and bake uncovered for 45-50 minutes until the top is golden and the custard is set.
  6. Step 6: Let cool for 10 minutes before serving. Serve warm with maple syrup on the side.

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Frequently asked questions

How long does Overnight Eggnog French Toast Casserole take to make?

Total time is about 65 minutes (15 min prep + 50 min cook). Most home cooks find this fits comfortably into a busy morning; prep components the night before to save active time.

How do I store leftover Overnight Eggnog French Toast Casserole?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat in the microwave or oven; egg- or grain-based items may need a splash of milk or water to refresh texture. Cold-served items (overnight oats, smoothies) keep 2–3 days in the fridge.

Can I substitute ingredients in Overnight Eggnog French Toast Casserole?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Overnight Eggnog French Toast Casserole for a different number of people?

The recipe is written for 8 servings. Multiply each ingredient by (your serving target / 8). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Overnight Eggnog French Toast Casserole?

American christmas like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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