Overnight French Toast Casserole

Turn bread into a luxurious breakfast casserole by soaking it overnight in vanilla custard and topping with a nutty crumble. Make ahead for stress-free mornings.
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Updated on Thu, 02 Jan 2025 02:51:03 GMT
A close-up of a baked dessert in a white dish, topped with crumbled nuts and powdered sugar, with some portions visible and plates in the background.
A close-up of a baked dessert in a white dish, topped with crumbled nuts and powdered sugar, with some portions visible and plates in the background. Pin it
A close-up of a baked dessert in a white dish, topped with crumbled nuts and powdered sugar, with some portions visible and plates in the background. | quickierecipe.com

Let me share my favorite breakfast casserole that turns regular French toast into something truly special! After years of hosting family brunches I've perfected this recipe that combines custardy bread with the most amazing crispy crumble topping. It's become such a hit that my family starts asking for it days before any holiday gathering.

The Secret's in the Bread

You know what makes this casserole extra special? Using sourdough bread! I discovered that its sturdy texture and slight tang create the perfect base. It holds up beautifully to all that creamy custard without getting mushy like softer breads do. When you can't find sourdough a good crusty Italian loaf works wonderfully too.

Everything You Need

  • The Bread: One pound sourdough torn into perfect bite-sized pieces.
  • For That Rich Custard:
    • 8 fresh eggs they make everything silky
    • 3 cups half-and-half for ultimate creaminess
    • Warm spices like cinnamon and nutmeg
    • Good vanilla it makes such a difference
  • The Amazing Topping:
    • Butter soft but not melted
    • Brown sugar for caramelly sweetness
    • Chopped pecans add the perfect crunch
    • Just enough flour to hold it together

Let's Make Something Special

First Things First
Get your biggest baking dish and give it a good spray. Then tear up that bread into chunks - I like making them different sizes for more interesting texture.
The Custard Magic
This is where it gets fun! Whisk those eggs with half-and-half vanilla brown sugar and all our warm spices until everything's smooth and gorgeous. Pour it all over your bread making sure every piece gets a good soaking.
Time to Rest
Here's my secret for the best texture: let it rest overnight in the fridge. The bread soaks up all that amazing custard like a sponge.
That Crumbly Top
Mix up your nuts flour brown sugar and butter until you get these perfect little clumps. It's like making a streusel for pie but even better!
Into the Oven
Top your soaked bread with all that crumbly goodness and bake until it's puffed up and golden. Your kitchen will smell like heaven!

Serving It Up Right

Want to know how to make this extra special? Serve it warm with real maple syrup drizzled over top and a little dusting of powdered sugar. I love adding fresh berries for color and a pop of brightness. It's perfect for those lazy weekend mornings or holiday celebrations.

Keeping It Fresh

Here's what I've learned about leftovers though they rarely happen at my house! This casserole keeps beautifully in the fridge for about four days. Just cover it well and when you want some warm it up in the oven to keep that topping crispy. The microwave works in a pinch but the oven really brings back that fresh-baked magic.

Make It Your Own

Let me share some fun ways to switch things up! Sometimes I'll add orange zest to the custard for a citrusy twist or throw in some chocolate chips for the kids. Want to go savory? Skip the sugar and spices and add herbs cheese and vegetables instead. It's like having a whole new recipe each time you make it!

A baked dessert with golden-brown pieces topped with a crumbly mixture and chopped nuts, served in a white dish. Pin it
A baked dessert with golden-brown pieces topped with a crumbly mixture and chopped nuts, served in a white dish. | quickierecipe.com

All About That Crumble

You know what makes this casserole extra special? That buttery nutty crumble on top! Make sure your butter is cold when you mix it in you'll get better clumps that way. And don't skimp on spreading it evenly everyone should get some of that crunchy goodness in every bite.

Plan Ahead for Success

Want to know my favorite hosting trick? I make this the night before any big gathering. Just assemble everything but keep that crumble topping separate in the fridge. The next morning all you have to do is sprinkle on the topping and pop it in the oven. Your guests will wake up to the most amazing breakfast smells!

Getting That Perfect Texture

Let me tell you the secret to getting that perfect custardy texture every time. Those irregular pieces of sourdough create these amazing little valleys that catch all the custard. Some pieces get super soft while others stay a bit chewy giving you the most wonderful mix of textures in every bite.

Making It Special

This isn't just breakfast it's an experience! I love serving it with a drizzle of warm maple syrup and watching it sink into all those nooks and crannies. Add some crispy bacon on the side and fresh berries for color. When my family sees this coming out of the oven they know it's going to be a good morning!

Saving It For Later

Here's my best tip for leftovers: wrap them up well and they'll stay delicious in the fridge for up to four days. When you're ready for more pop it in the oven covered with foil. About 15 minutes at 350 brings back all that fresh-baked goodness. Sure you can use the microwave if you're in a hurry but the oven keeps that topping nice and crispy.

Making It Your Way

You know what's fun about this recipe? How easy it is to adapt! Need it dairy-free? Use almond milk and coconut cream instead of half-and-half. Want it less sweet? Cut back on the brown sugar. I've even had friends make it with gluten-free bread and it turns out wonderfully. It's all about making it work for you and your family.

A slice of baked French toast topped with chopped nuts and sprinkled with powdered sugar, served with a drizzle of syrup on a white plate. Pin it
A slice of baked French toast topped with chopped nuts and sprinkled with powdered sugar, served with a drizzle of syrup on a white plate. | quickierecipe.com

Final Tips For Success

Let me share my last few secrets for perfect French toast casserole. Always press that bread gently into the custard so every piece gets its fair share. If you notice the top getting too brown while baking just tent it with foil. And most importantly let it rest for about 10 minutes after baking it'll be easier to serve and won't burn any tongues!

Frequently Asked Questions

→ Can I use different types of bread?
Any sturdy bread works well, but avoid baguettes. Sourdough, Italian, or French bread are ideal choices for best texture.
→ How far ahead can I prepare this?
Assemble up to 24 hours ahead and refrigerate. The longer it soaks, the more custardy the texture becomes.
→ Can I skip the overnight soak?
Let it sit at room temperature for 1 hour if you want to bake immediately. The texture won't be quite as rich as overnight.
→ What nuts work best in the topping?
Pecans or walnuts are recommended, but any chopped nuts will work. You can even mix different types.
→ How do I know when it's done?
The casserole should be puffed up, golden brown on top, and set in the middle, typically after 45-50 minutes of baking.

French Toast Bake

A make-ahead breakfast casserole combining torn bread soaked in rich custard, topped with a buttery nut crumble. Perfect for special mornings.

Prep Time
20 Minutes
Cook Time
50 Minutes
Total Time
70 Minutes
By: Meryem

Category: Breakfast

Difficulty: Intermediate

Cuisine: American

Yield: 8 Servings (1 9x13 casserole)

Dietary: Vegetarian

Ingredients

01 Unsalted butter (4 tablespoons)
02 Sourdough or Italian bread (1 pound)
03 Large eggs (8)
04 Half-and-half (3 cups)
05 Light brown sugar (3/4 cup)
06 Vanilla extract (1 tablespoon)
07 Ground cinnamon (1 teaspoon)
08 Kosher salt (3/4 teaspoon)
09 Ground nutmeg (1/2 teaspoon)
10 Chopped nuts (2 ounces)
11 All-purpose flour (1/4 cup)
12 Maple syrup for serving
13 Fresh berries for serving

Instructions

Step 01

Coat 9x13-inch baking dish with cooking spray

Step 02

Tear bread into bite-size pieces and spread in baking dish

Step 03

Whisk eggs, half-and-half, brown sugar, vanilla, cinnamon, salt, and nutmeg until smooth

Step 04

Pour custard over bread, press down, cover and refrigerate overnight

Step 05

Mix nuts, flour, brown sugar, spices, and butter until crumbly

Step 06

Top with crumble and bake at 350°F for 45-50 minutes until golden

Notes

  1. Can be prepared up to 24 hours ahead
  2. Needs at least 1 hour soak time
  3. Customize with different breads or nuts

Tools You'll Need

  • 9x13-inch baking dish
  • Mixing bowls
  • Whisk
  • Plastic wrap

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Dairy
  • Eggs
  • Wheat
  • Tree nuts

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 380
  • Total Fat: 18 g
  • Total Carbohydrate: 45 g
  • Protein: 12 g