How to Make an Easy French Toast Casserole

Ingredients

• 8 oz French Bread (crusty French or sourdough bread, cut into 1‑inch cubes)
• 6 large Eggs (room temperature)
• 2 cup Milk (whole milk preferred for richness)
• 2 tsp Vanilla Extract (pure vanilla extract)
• 1 stick Unsalted Butter (melted)
• 2 tbsp Light Brown Sugar (packed; used for butter‑sugar base)
• 2 tbsp Light Brown Sugar (packed; used for topping)
• 1 tsp Ground Cinnamon
• 0.5 cup Fresh Berries (optional, for serving)

Instructions

1. Cube the Bread

   Cut the French or sourdough bread into roughly 1‑inch cubes; set aside.

   Time: PT5M

2. Prepare the Custard

   In a mixing bowl, whisk together 6 large eggs, 2 cups whole milk, and 2 teaspoons vanilla extract until smooth with no visible egg chunks.

   Time: PT5M

3. Make Butter‑Sugar Base

   Melt 1 stick unsalted butter in a saucepan over medium heat, then stir in 2 tbsp light brown sugar until fully dissolved and the mixture looks slightly caramelized.

   Time: PT5M

   Temperature: medium heat

4. Spread Base in Dish

   Pour the melted butter‑sugar mixture into the bottom of a 9×13‑inch casserole dish and spread evenly.

   Time: PT2M

5. Layer Bread

   Evenly distribute the cubed bread over the butter‑sugar layer.

   Time: PT2M

6. Add Custard

   Pour the custard over the bread, making sure all cubes are submerged; gently press to help the bread soak.

   Time: PT5M

7. Refrigerate Overnight

   Cover the dish tightly with plastic wrap and refrigerate for at least 8 hours (overnight) to allow the bread to fully absorb the custard.

   Time: PT8H0M

8. Preheat Oven

   When ready to bake, preheat the oven to 350°F (175°C).

   Time: PT5M

   Temperature: 350°F

9. Prepare Topping

   In a small bowl, combine 2 tbsp light brown sugar with 1 tsp ground cinnamon; stir until evenly mixed.

   Time: PT2M

10. Add Topping

    Sprinkle the cinnamon‑brown‑sugar mixture evenly over the top of the casserole.

    Time: PT1M

11. Bake

    Bake the casserole uncovered for 30 minutes, or until the edges are golden‑brown and the center is set. If the top browns too quickly, cover loosely with foil.

    Time: PT30M

    Temperature: 350°F

12. Rest and Serve

    Allow the casserole to rest for 5 minutes, then serve warm topped with fresh berries, maple syrup, or powdered sugar if desired.

    Time: PT5M

Nutrition Facts

Calories

350

Protein

12 g

Carbohydrates

45 g

Fat

12 g

Fiber

2 g

Ingredient Substitutions

• Instead of French Bread: Italian bread, baguette, day‑old bread
• Instead of Eggs: egg replacer
• Instead of Milk: almond milk, soy milk
• Instead of Vanilla Extract: vanilla bean, almond extract (½ tsp)
• Instead of Unsalted Butter: margarine
• Instead of Light Brown Sugar: dark brown sugar, coconut sugar
• Instead of Light Brown Sugar: dark brown sugar, coconut sugar
• Instead of Ground Cinnamon: ground nutmeg (½ tsp)
• Instead of Fresh Berries: fruit compote, sliced bananas

Equipment Needed

• 9x13‑Inch Casserole Dish
• Mixing Bowl
• Whisk
• Saucepan
• Spatula or Wooden Spoon
• Measuring Cups and Spoons
• Plastic Wrap
• Oven
• Oven Mitts

Critical Steps — Do Not Skip

• Prepare the custard without chunks
• Melt butter and dissolve brown sugar without burning
• Ensure bread is fully saturated with custard
• Refrigerate overnight for proper texture
• Bake until golden and caramelized

Chef Tips from the Video

• Use a mix of French bread and a bit of brioche for extra richness.
• Replace half of the milk with heavy cream for a luxuriously creamy custard.
• Add a pinch of salt to the custard to enhance the sweet flavors.

Troubleshooting

Storage

Refrigerator: Store leftovers in an airtight container for up to 3 days; reheat in the oven or microwave.

Freezer: Freeze baked portions in freezer‑safe containers for up to 1 month; thaw overnight before reheating.

Room temperature: Do not store at room temperature for more than 2 hours.

Make-Ahead Tips

• The casserole can be assembled up to the refrigeration step and kept in the fridge for up to 2 days before baking.
• Unbaked assembled casserole freezes well; wrap tightly and freeze for up to 1 month, then bake directly from frozen adding 10‑15 extra minutes.

Frequently Asked Questions