This French toast casserole has an easy blueberry sauce and is made the night before to create a simple and delicious breakfast.

Any time I can make and prep a breakfast the day before and then pop in the oven to bake the next morning I consider it a major win!

What Ingredients do I need for the french toast casserole?

Bread: I used brioche, but sourdough or a french loaf would be great also!
Eggs: this forms the custard mixture
Heavy Cream: you could swap this for milk also if you want to make it a little lighter.
Vanilla Extract: everything is better with vanilla
Cinnamon: is it even french toast if there isn’t cinnamon?
Blueberries: fresh or frozen will work.
Lemon: we will use both the zest and juice
Sugar: use this in the blueberry sauce to sweeten it.

How do I make Overnight French Toast Casserole?

In a sauce pan combine blueberries, lemon juice, lemon zest, and sugar. Cook over medium heat until the sauce has thickened.
In a 9 x 13 casserole dish place torn pieces of bread.
In a medium sized bowl combine eggs, heavy cream, vanilla extract, and cinnamon. Mix to combine, pour over top of the bread.
Cover the casserole dish and place in the fridge overnight (let the mixture combine for at least 6 hours).
Preheat oven to 350. Place casserole dish in the oven and bake for 30-35 minutes.
Top with maple syrup and enjoy!

Share Your Experience

I would love to hear about your experience making and enjoying my Overnight Blueberry French Toast Casserole! Feel free to tag me on Instagram or leave a review below. Your feedback helps me improve our recipes and provides inspiration to fellow bakers.

Save this recipe for later by simply using the pin button on the recipe card or any of the photos above. Happy cooking!