Delicious Overnight Toast Casserole

Featured in: Breakfast

Transform plain bread into a fancy morning treat by letting it soak overnight in sweet vanilla egg mix and finishing with a crunchy nut layer. Prep ahead for easy mornings.
Twistytaste.com
Updated on Sun, 13 Apr 2025 17:11:37 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. 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. | twistytaste.com

I've gotta share my go-to morning bake that transforms basic French toast into something extraordinary! Through countless family get-togethers, I've tweaked this dish combining soft, custardy bread chunks with an irresistible crunchy topping. My relatives start bugging me about making it well before any holiday rolls around!

What Makes the Base So Good

The game-changer in this breakfast dish? Going with sourdough! I found out its firm structure and subtle tanginess creates the ideal foundation. It stands up to all that creamy egg mixture without turning soggy like regular bread might. Can't track down sourdough? A nice rustic Italian loaf works great as a backup.

Your Shopping List

  • The Foundation: One pound sourdough ripped into tasty chunks.
  • For The Creamy Mixture:
    • 8 eggs for that smooth texture
    • 3 cups half-and-half giving you ultimate richness
    • Cozy spices including nutmeg and cinnamon
    • Quality vanilla that really counts
  • The Crunchy Finish:
    • Butter cool but spreadable
    • Brown sugar for that sweet caramel kick
    • Pecans roughly chopped for extra bite
    • A bit of flour to bind everything

Putting It All Together

Starting Off
Grab your largest casserole dish and spray it down good. Tear that bread into pieces - I prefer varied sizes to create more interesting bites.
Mixing The Wet Stuff
Now comes the fun part! Beat those eggs with the half-and-half, vanilla, brown sugar and all those warm spices until it looks nice and smooth. Pour this mixture all over your bread chunks so each piece gets totally soaked.
The Waiting Game
Here's my trick for amazing results: let everything sit in your fridge overnight. The bread will drink up all that tasty egg mixture completely.
Creating The Topping
Combine your nuts, flour, brown sugar and butter until you've got nice crumbly bits. Think of it as making pie topping but way better!
Baking Time
Sprinkle all that crumbly goodness over your soaked bread and bake until it puffs up with a golden top. Your house will smell absolutely incredible!

Ways To Enjoy It

Wanna take this dish up a notch? Serve it while it's warm with real maple syrup drizzled on top and a light sprinkling of powdered sugar. I always add some fresh berries for color and brightness. It's just perfect for slow weekend mornings or big family gatherings.

Storage Tricks

I've figured out the best way to handle leftovers, though they rarely last at my place! This dish stays good in the fridge for around four days. Just wrap it up tight and when you want more, warm it in the oven to keep that topping nice and crisp. Microwaving works if you're rushed but the oven truly brings back that just-baked feel.

Customization Ideas

Let me tell you about some fun twists! Sometimes I toss in some orange zest for a fresh citrus kick or mix in chocolate chips when the kids are around. Feeling like something not sweet? Just drop the sugar and spices and throw in some herbs, cheese and veggies instead. It's like getting a brand new dish 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. | twistytaste.com

Creating Perfect Topping

You know the real star of this breakfast? That buttery nutty layer on top! Make sure you use cold butter when mixing it up - you'll get those perfect little chunks that way. And be sure to spread it out evenly so everyone gets some of that amazing crunch in every single bite.

Smart Prep Strategies

Want my number one hosting hack? I put this together the night before any big family breakfast. Just get everything ready but keep that crumbly topping in a separate container in the fridge. Next morning, all you've gotta do is scatter on the topping and stick it in the oven. Everyone will wake up to the most wonderful smells!

Nailing The Right Consistency

Let me share the trick to getting that custardy middle just right every time. Those random chunks of sourdough create these little pockets that trap all the egg mixture. Some bits get super soft while others stay a bit firmer giving you an awesome mix of textures when you take a bite.

Elevating Breakfast Time

This isn't just food - it's a whole morning event! I love watching warm maple syrup sink into all those cracks and crevices. Throw in some crispy bacon on the side and add colorful fresh berries. When my family sees this coming out hot from the oven, they know we're in for a treat!

Handling The Extras

Here's what I do with leftovers: cover them tight and they'll keep nicely in the fridge for up to four days. When you want more, stick it in the oven with some foil on top. About 15 minutes at 350 brings back all that freshly baked goodness. You can zap it in the microwave if you're short on time, but the oven keeps that topping nice and crunchy.

Adjusting To Your Needs

The cool thing about this dish? It's so easy to change up! Need to skip dairy? Try almond milk and coconut cream instead of half-and-half. Want it less sweet? Just cut down on the brown sugar. I've got friends who've made it with gluten-free bread and it turns out great. It's all about making it work for what you and your family like.

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. | twistytaste.com

Smart Cooking Advice

Here are my final tricks for a knockout French toast bake. Always push the bread down gently into the egg mix so each chunk gets fully soaked. If you see the top getting too dark while cooking, just place 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

→ Can I use different types of bread?
Most hearty breads work fine but don't use baguettes. Try sourdough, Italian or French loaves for the best results.
→ How far ahead can I prepare this?
You can put it together up to 24 hours before and keep it in the fridge. The longer it sits, the more egg mixture soaks in.
→ Can I skip the overnight soak?
You can let it sit for just 1 hour at room temp if you're in a hurry. It won't be as moist as the overnight version though.
→ What nuts work best in the topping?
We like pecans or walnuts best, but any nuts you chop up will do the job. Feel free to mix different kinds together.
→ How do I know when it's done?
You'll see it puff up and turn golden on top. The middle should be set and not jiggly after about 45-50 minutes in the oven.

Classic Toast Bake

A time-saving breakfast dish with torn bread chunks soaked in creamy egg mixture, finished with a crumbly butter-nut topping. Ideal for busy mornings.

Prep Time
20 Minutes
Cook Time
50 Minutes
Total Time
70 Minutes

Category: Breakfast

Difficulty: Intermediate

Cuisine: American

Yield: 8 Servings (1 9x13 casserole)

Dietary: Vegetarian

Ingredients

01 4 tablespoons of plain butter
02 1 pound of crusty Italian or sourdough loaf
03 8 large eggs from the fridge
04 3 cups of half-and-half cream
05 3/4 cup packed brown sugar
06 1 tablespoon pure vanilla extract
07 1 teaspoon ground cinnamon powder
08 3/4 teaspoon kosher salt flakes
09 1/2 teaspoon freshly ground nutmeg
10 2 ounces of roughly chopped nuts
11 1/4 cup regular flour
12 Maple syrup to drizzle on top
13 Seasonal fresh berries for garnish

Instructions

Step 01

Spray a 9x13-inch baking dish with non-stick spray

Step 02

Break the bread into small, mouth-sized chunks and arrange in dish

Step 03

Combine eggs, half-and-half, brown sugar, vanilla, cinnamon, salt and nutmeg, beating till blended

Step 04

Dump mixture over bread, push bread down gently, wrap and chill in fridge all night

Step 05

Stir together nuts, flour, brown sugar, spices and butter until it forms small clumps

Step 06

Sprinkle crumble over top and cook at 350°F for 45-50 mins until puffy and golden

Notes

  1. You can make this a day before you need it
  2. It needs to soak for at least an hour
  3. Feel free to switch up the bread type or nut variety

Tools You'll Need

  • Baking dish 9x13 inches
  • Several mixing bowls
  • A good whisk
  • Cling film

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