French Toast Casserole — make ahead, bake, enjoy! Sweet comfort in every bite: day-old bread cubes soaked in a cinnamon-vanilla custard, topped with butter and cinnamon sugar, and baked until golden and puffed. Simple ingredients, big flavor. Every step below comes with its own photo.
Bake 350°F · 40-45 min
9×13 Dish
Serves 8
Ingredients
- 8 cups bread cubes (French bread or brioche)
- 6 large eggs
- 2 cups milk
- 1/2 cup heavy cream
- 1/3 cup brown sugar
- 2 tsp vanilla extract
- 1 tsp ground cinnamon
- 1/4 tsp salt
- 2 tbsp melted butter
Step by Step
Prepare Bread
Place bread cubes in a greased 9×13-inch baking dish. Cut the bread into roughly 1-inch cubes and spread them in an even layer — even cubes soak evenly, while a mix of crumbs and huge chunks bakes up patchy. The pin’s first Pro Tip matters most here: use day-old or slightly stale bread for the best texture. Dry bread drinks up custard like a sponge; fresh soft bread just collapses into mush. No stale bread? Cube fresh bread and dry it in a 300°F oven for 10 minutes.
Make Custard
Whisk together eggs, milk, heavy cream, brown sugar, vanilla extract, cinnamon and salt until well combined. Whisk until the brown sugar fully dissolves and the custard is one smooth, cinnamon-flecked gold — rub a drop between your fingers; it should feel silky, not gritty. The half cup of heavy cream is the luxury ingredient: it makes the set custard rich and almost pudding-like instead of plain eggy.
Combine
Pour the custard mixture over the bread cubes. Gently press down and let it sit for 10-15 minutes (you can also refrigerate overnight). Pour slowly in a spiral so every corner gets its share, then press with the back of a spoon until all the top cubes have taken a custard bath. The resting time is the recipe’s whole secret — the cubes need those minutes to absorb the custard to their centers, and the overnight option (the pin’s make-ahead tip) soaks them deepest of all, giving the finished casserole its famous custardy middle.
Add Topping
Drizzle melted butter on top and sprinkle a little cinnamon and brown sugar if desired. Do not skip the butter drizzle: it melts down through the top layer in the oven and helps the surface crisp and caramelize, while the extra cinnamon sugar forms a delicate, shattering sweet crust — the part everyone fights over. If the casserole soaked overnight, add this topping just before baking, not before refrigerating.
Bake
Bake at 350°F (175°C) for 40-45 minutes until golden brown and set. The casserole is done when the top is deep golden, the center has puffed and only jiggles very slightly when you nudge the dish, and a knife inserted in the middle comes out clean. If the top browns too fast, tent it loosely with foil for the last 10 minutes. An overnight-soaked casserole may need 5 extra minutes — it goes into the oven cold.
Serve
Serve warm with maple syrup and fresh fruit. Rest the casserole 10 minutes out of the oven — it finishes setting and slices into clean squares instead of slumping. Then serve it like the pin’s photo: a generous square, a snowfall of powdered sugar, a tumble of fresh berries and warm maple syrup poured over at the table. Sweet comfort in every bite, exactly as promised.
Pro Tips (from the pin)
- Use day-old or slightly stale bread for the best texture.
- Try different breads like brioche, challah or sourdough.
- Add nuts, chocolate chips or extra fruit for variety.
- Make it ahead and refrigerate overnight for an easy morning!
Perfect For
- Brunch
- Holidays
- Family Gatherings
- Meal Prep
Frequently Asked Questions
Why is my french toast casserole soggy?
Three usual causes: the bread was too fresh (it collapses instead of soaking), the soak was skipped or rushed, or it was underbaked. Use day-old bread, give it the full 10-15 minutes (or overnight), and bake until the center is set with only a slight jiggle.
How long can it sit in the fridge before baking?
Up to 24 hours, covered. That overnight soak is the pin’s own make-ahead tip and it actually improves the casserole. Add the butter and cinnamon-sugar topping right before it goes into the oven, and add about 5 minutes to the bake since it starts cold.
Which bread is really best?
Brioche and challah make the richest, most tender casserole; French bread gives more chew and structure; sourdough adds a gentle tang that balances the sweetness. Per the pin’s tips, all of them work — just keep it day-old and cubed evenly.
Can I freeze french toast casserole?
Yes, baked and cooled, wrapped tightly, for up to 2 months. Thaw overnight in the fridge and reheat covered at 350°F for 20 minutes. You can also freeze it unbaked and bake from thawed, adding 5-10 minutes.
What else can I serve on top?
The pin serves it warm with maple syrup and fresh fruit. Also wonderful: a dusting of powdered sugar, whipped cream, warm berry compote, a drizzle of caramel, or chopped toasted pecans for crunch.