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    Home » Breakfast

    The Best Overnight French Toast Casserole Recipe

    Published: Jan 28, 2015 · Last Modified: May 9, 2023 by Jessica · 15 Comments · This post may contain affiliate links

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    This is The BEST Overnight French Toast recipe you'll ever have! Made with thick slices of soft bread that have been soaked over night in a rich custard of eggs, cream and vanilla and topped with a sweet crumble topping just before baking. After soaking in the custard, the bread becomes incredibly moist, gooey and tender, creating a truly decadent breakfast treat!

    Slice of overnight French toast on a plate with maple syrup.

    This is such a delicious make-ahead breakfast that's perfect for lazy weekend mornings or special occasions that is just absolutely bursting with flavor and texture. My family loves when I make this!

    Table of Contents

    • Why you'll love this recipe
    • Ingredients
    • Substitutions & Variations
    • How to Make the BEST Overnight French Toast
    • Recipe Tip
    • Storage
    • More Breakfast Recipes You'll Love
    • The Best Overnight French Toast Casserole Recipe

    Why you'll love this recipe

    • This French toast with brioche bread is always such a crowd pleaser AND it feeds a crowd.
    • Make-ahead the night before a holiday, birthday or important event so you can just pop it right in the oven in the morning and have the easiest breakfast ever!

    Ingredients

    Overnight French toast ingredients.

    French Toast

    • Bread: I love using brioche because I love the flavor but mostly any bread will work. Thickly sliced for best results.
    • Eggs
    • Whole milk
    • Heavy cream
    • Granulated sugar
    • Cinnamon
    • Vanilla extract

    Crumble Topping

    • All-purpose flour
    • Light brown sugar
    • Cinnamon
    • Salt
    • Unsalted butter

    See recipe card below for a full list of ingredients and measurements.

    Substitutions & Variations

    • Add to custard mixture: chopped nuts or chocolate chips.
    • Sprinkle a layer of blueberries before sprinkling the crumb topping on top for a blueberry French toast casserole! You could also use raspberries or thinly sliced apples.
    Slice of overnight French toast on a plate with a bite taken with a fork to see center.

    How to Make the BEST Overnight French Toast

    Pieces of bread in a pan for overnight French toast casserole.
    Stagger bread pieces in prepared baking dish into an even layer.
    Custard mixture for overnight French toast recipe.
    Whisk eggs, milk, heavy cream, sugar, cinnamon and vanilla together very well until combined.
    Overnight French toast with custard mixture poured on top.
    Pour custard mixture evenly over bread pieces trying to moisten every piece as well as you can. Tightly cover with plastic wrap and store in the refrigerator overnight or a minimum of 2 hours.
    Crumble topping ingredients for overnight French toast.
    Place crumble topping ingredients into a bowl.
    Crumble topping for overnight French toast.
    Mix crumble topping and store in the refrigerator overnight or until ready to use.
    Overnight French toast after chilling overnight.
    When ready to bake, preheat oven and uncover the french toast.
    Overnight French toast ready to bake.
    Break up prepared crumble topping and sprinkle evenly on top.
    Overnight French toast baked in the oven.
    Bake for 45 minutes - 1 hour. If you want a more gooey, custard consistency in the center, less baking time is required.

    Serve warm with a drizzle of maple syrup or just a sprinkle of confectioner's sugar on top.

    Recipe Tip

    This French Toast Casserole doesn't have to sit overnight! Allow a minimum of 2 hours for the custard to soak into the bread and proceed with baking.

    Storage

    Refrigerator

    This Overnight French Toast will keep for up to 5 days stored in the refrigerator in an airtight container.

    Slice of overnight French toast on a plate without maple syrup.

    More Breakfast Recipes You'll Love

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    • Perfect Buttermilk Pancakes stack.
      Perfect Buttermilk Pancakes
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      Cinnamon Roll Crescents
    • Cinnamon Swirl Coffee Cake - Soft lightly spiced coffee cake is filled with a gooey cinnamon swirl center and topped with a sweet streusel topping + vanilla glaze!
      Cinnamon Swirl Coffee Cake

    Did you make this recipe?

    Please leave a ⭐️ review below and tag @sprinkle_some_sugar on Instagram!

    Slice of overnight French toast on a plate.

    The Best Overnight French Toast Casserole Recipe

    Jessica
    This is The BEST Overnight French Toast recipe you'll ever have! Made with thick slices of soft bread that have been soaked over night in a rich custard of eggs, cream and vanilla and topped with a sweet crumble topping just before baking. After soaking in the custard, the bread becomes incredibly moist and tender, creating a truly decadent breakfast treat!
    PRINT RECIPE PIN RECIPE
    Prep Time 10 mins
    Cook Time 45 mins
    Refrigerate overnight or minimum 4 hours 4 hrs
    Course Breakfast
    Servings 8

    Ingredients
      

    French Toast Casserole

    • 12-15 slices of bread thickly sliced brioche or white bread
    • 6 large eggs
    • 2 cups whole milk
    • ½ cup heavy cream
    • ¾ cup granulated sugar
    • 1 teaspoon cinnamon
    • 2 tbs vanilla extract

    Crumble Topping

    • 1 cup flour plus up to ¼ cup more if needed
    • ½ cup brown sugar
    • 1 teaspoon cinnamon
    • pinch salt
    • ½ cup cold butter cut into tiny chunks

    Instructions
     

    • Grease a 9x13 pan very lightly with non-stick cooking spray. Set aside.
    • Cut bread slices into 1 inch chunks and stagger them in the prepared baking dish as even as possible. You may need more or less bread to fill your pan depending on thickness/size.
    • In a large bowl or measuring cup, whisk eggs, milk, heavy cream, sugar, cinnamon and vanilla together very well until combined. Pour custard mixture evenly over bread pieces trying to moisten every piece as well as you can. Tightly cover with plastic wrap and store in the refrigerator over night.
    • To make the crumble topping, whisk together flour, brown sugar, cinnamon and salt in a medium bowl. Cut in butter until a coarse meal consistency is achieved. Either cover the bowl with saran wrap or place the mixture into a resealable bag to store in the refrigerator overnight with the pan of french toast.
    • In the morning, preheat your oven to 350 degrees. Uncover the french toast and evenly distribute the crumble on top.
    • Bake for 45 minutes - 1 hour depending on how gooey and custard-like you want the center to be.
    • Once done, serve warm with maple syrup or even just a sprinkle of confectioner's sugar on top.

    Notes

    • Storing Instructions: This Overnight French Toast will keep for up to 5 days stored in the refrigerator in an airtight container.
    Tried this recipe?Let us know how it was!
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    Reader Interactions

    Comments

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    1. Fi Ní Neachtáin says

      February 04, 2015 at 4:01 am

      This looks absolutely delicious! My boys love French toast and my other half makes it on a regular basis, I've never heard of letting it set overnight though - I need to show this to my other half! I like that this version has a crumble to it, such a unique twist to how we usually make it. Thanks for sharing the recipe and method, we need to try it out for ourselves 🙂

      Reply
    2. Lisa says

      December 23, 2015 at 4:03 pm

      It's even better with challah bread or really just any thick cut bread!

      Reply
      • Jessica says

        December 27, 2015 at 4:29 pm

        That's good to know! I love challah bread so I may try that.

        Reply
    3. Pam Smith says

      December 24, 2015 at 6:51 pm

      I found the middle to be a bit bland, I would probably add some cinnamon to the egg mixture. Otherwise it turned out pretty good.

      Reply
    4. Lisa says

      December 24, 2015 at 11:08 pm

      Your pictures look like there are peaches on top under the crumble. Did you put peaches on it?

      Reply
      • Jessica says

        December 27, 2015 at 4:27 pm

        Nope, no peaches. What you're seeing is the crust from the bread.

        Reply
    5. Sandy Lackey says

      December 28, 2015 at 11:51 am

      Looks delicious. I like the crumbly top. ?? The photo of the overnight French toast looks like there are peach slices on the bread. Are there ?

      Reply
      • Jessica says

        January 05, 2016 at 7:06 pm

        Nope, no peaches. What you’re seeing is the crust from the bread.

        Reply
    6. Annelise says

      January 01, 2016 at 12:22 pm

      I just tried this today. It was amazing. My family absolutely loved it. My brother and sister-in-law were visiting from Colorado, so I decided to make it and it was a hit. It was all gone and it was delicious.

      Reply
      • Jessica says

        January 05, 2016 at 7:07 pm

        Awesome!! I'm glad your company loved it. 🙂

        Reply
    7. Miya says

      December 16, 2016 at 10:37 pm

      Some reason mines was not crumbly as much.. Can you tell me why

      Reply
    8. Natasha says

      February 10, 2022 at 12:59 pm

      When I make this recipe I have always cut little one inch cubes of bread…. But I’m starting to think you lay one inch pieces of bread just flat in the 9x13. Can you clarify?

      Reply
      • Jessica says

        April 07, 2022 at 8:36 am

        There's really no specific way to prepare it - I just throw the bread pieces in the 9x13 pan in an even layer.

        Reply

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    I'm so excited you're here! I’m Jess, a self-taught baker, recipe developer & food photographer in New Jersey! Here you will find recipes ranging from decadent desserts to savory dishes. Take a look around and I hope you stay a while.

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