Flavorful French Toast Casserole

Featured in Fresh bread hot from the oven.

Transform bread into a custard-soaked baked treat topped with nuts. Prep the night before for a no-stress breakfast.
Maria from tastyhush
Updated on Sat, 03 May 2025 12:14:23 GMT
A golden dessert in a white dish, dusted with nuts and powdered sugar. Some portions scooped out with a plate nearby. Pin it
A golden dessert in a white dish, dusted with nuts and powdered sugar. Some portions scooped out with a plate nearby. | tastyhush.com

My go-to breakfast treat transforms ordinary French toast into something extraordinary! Through countless family brunches, I've tweaked this dish until it's just right—mixing soft, custardy bread with an irresistible crunchy topping. Now my relatives start begging for it well before any family get-together!

Why Bread Makes All The Difference

Want to know the game-changer for this breakfast bake? It's all about using sourdough! I found out its firm structure and subtle tang works wonders as the foundation. It stands up to all that creamy mixture without turning soggy like regular bread typically would. Can't grab sourdough? A nice crusty Italian bread does the trick too.

What You'll Need

  • The Base: One pound sourdough broken into tasty chunks.
  • For The Smooth Mixture:
    • 8 eggs for that velvety texture
    • 3 cups half-and-half that makes everything super rich
    • Cozy spices including cinnamon and nutmeg
    • Real vanilla that truly elevates everything
  • The Crunchy Finish:
    • Butter cool but spreadable
    • Brown sugar for that sweet caramel flavor
    • Pecans roughly chopped for extra bite
    • A bit of flour to bind everything nicely

Cooking Magic Starts Here

Getting Started
Grab your largest baking dish and coat it thoroughly. Then tear that bread into pieces - I prefer varied sizes for better texture when you bite in.
Whipping Up The Mixture
Now for the fun part! Beat those eggs with the half-and-half, vanilla, brown sugar and your warm spices until it looks silky smooth. Pour this mixture all over your bread chunks, making sure each piece gets completely soaked.
Patience Pays Off
Here's my top trick for amazing results: let everything sit in your fridge overnight. The bread will drink up all that tasty mixture completely.
Creating That Topping
Combine your nuts, flour, brown sugar and butter until you see small clumps forming. It's similar to a pie topping but even tastier!
Baking Time
Sprinkle all that crumbly mixture over your soaked bread and bake until it's puffy and golden brown. Your house will smell incredible!

Perfect Presentation

To really knock their socks off, serve it while it's warm with real maple syrup drizzled on top and a light sprinkle of powdered sugar. I always toss some fresh berries around for brightness and color. It works great for slow Sunday mornings or whenever you've got family coming over.

Storage Smarts

Here's what I've figured out about storing leftovers—if you ever have any! This dish stays good in the fridge for about four days if wrapped properly. When you want more, warm it up in the oven to maintain that crispy top layer. Your microwave can work too if you're rushed, but nothing brings back that fresh-baked quality like your oven does.

Your Own Spin

Let me tell you about some tasty twists! Sometimes I grate in some orange peel for a bright flavor or add chocolate chips when the kids are around. Feeling like something savory? Just drop the sugar and spices and throw in some herbs, cheese and veggies instead. You'll practically have a new dish every time!

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. | tastyhush.com

The Magical Topping

You know the real star of this breakfast bake? That buttery, nutty topping! Always use cold butter when mixing it together—you'll get those perfect little chunks that way. And be sure to spread it evenly across the whole dish so everyone gets some of that amazing crunch in every single bite.

Host Like A Pro

Want my number one entertaining trick? Put this together the night before your guests arrive. Just keep that crumbly topping in a separate container in your fridge. Come morning, all you need to do is scatter on the topping and stick it in the oven. Everyone will wake up to the most wonderful smells coming from your kitchen!

Nailing The Consistency

Let me share how to get that dreamy custardy feel every single time. Those random-sized chunks of sourdough create these little pockets that hold all the egg mixture. Some bits turn super soft while others keep a nice chew, giving you an awesome mix of textures with each forkful.

More Than Just Breakfast

This isn't just food—it's a whole mood! I love watching warm maple syrup sink into all those little crevices. Throw in some crunchy bacon on the side and fresh berries for a pop of color. When my family sees me pulling this out of the oven, they know we're in for a treat!

Smart Leftovers

My best advice for extras: cover them well and they'll keep nicely in your fridge up to four days. When hunger strikes again, put it in the oven with some foil on top. Around 15 minutes at 350 brings everything back to life. Sure, you can zap it if you're starving, but the oven keeps that topping wonderfully crisp.

Customizing Your Creation

What's cool about this dish? How easily you can switch things up! Need something without dairy? Try almond milk and coconut cream instead of half-and-half. Want it less sweet? Just use less brown sugar. I've even had buddies make it with gluten-free bread with great results. It's all about tweaking it to fit what you and your family love.

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. | tastyhush.com

Last-Minute Success Tricks

Here are my final secrets for an amazing French toast bake. Always push the bread down gently so each piece soaks up plenty of that mixture. If the top starts looking too dark while cooking, just lay some foil over it. And don't forget to let it cool about 10 minutes after baking—it'll be easier to cut and won't burn anyone's mouth!

Frequently Asked Questions

→ What kind of bread should I use?
Strong breads like sourdough or Italian are great choices. Avoid baguettes for best results.
→ How long can I keep it in the fridge?
You can refrigerate it for up to a whole day. More time means a creamier result.
→ Can I bake right away without soaking overnight?
Let it rest at room temperature for about an hour before baking. The flavor won’t be as deep as with an overnight soak.
→ Any nut options for the topping?
Pecans and walnuts are great choices. Mix and match nut varieties for fun!
→ What’s the best way to tell it’s done?
It should be golden on top, puffed up, and firm in the center—usually after 45 to 50 minutes.

French Toast Bake

Prep an easy breakfast with soft bread baked in creamy custard and finished with a crunchy buttery topping. Ideal for mornings that matter.

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

Category: Breads

Difficulty: Intermediate

Cuisine: American

Yield: 8 Servings (One 9x13 pan)

Dietary: Vegetarian

Ingredients

01 4 tablespoons of butter, unsalted
02 1 loaf of Italian or sourdough bread (1 pound)
03 8 eggs, large
04 3 cups of half-and-half
05 3/4 cup of brown sugar, packed light
06 1 tablespoon of vanilla
07 1 teaspoon of cinnamon, ground
08 3/4 teaspoon of kosher salt
09 1/2 teaspoon of nutmeg, ground
10 2 ounces of chopped nuts
11 1/4 cup of all-purpose flour
12 Maple syrup to drizzle on top
13 Fresh berries to serve alongside

Instructions

Step 01

Spray a 9x13-inch dish lightly with cooking spray

Step 02

Rip bread into smaller chunks and spread them out in the pan

Step 03

In a bowl, whisk together the eggs, half-and-half, sugar, vanilla, cinnamon, salt, and nutmeg until combined

Step 04

Pour custard mix all over the bread, gently press it down, cover it up, and chill overnight

Step 05

Combine nuts, flour, butter, sugar, and spices in a bowl until the texture's crumbly

Step 06

Sprinkle the crumble topping on top and bake at 350°F for 45-50 minutes, or until golden brown

Notes

  1. You can prepare this a whole day in advance
  2. Needs at least an hour to soak
  3. Switch up the nuts or bread to make it your own

Tools You'll Need

  • A 9x13-inch dish
  • Bowls to mix in
  • Whisk for stirring
  • Plastic wrap or lid

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy
  • Includes eggs
  • Has wheat
  • Made with 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