This Croissant Blueberry French Toast Casserole Bake is a dream come true. Buttery croissants soaked in a rich custard mixture are baked to perfection, bursting with juicy blueberry goodness. It’s a breakfast casserole that’s crisp on the outside, soft and pillowy on the inside, and packed with sweet flavor in every scrumptious bite.

If the flavor and fragrance of this amazing morning meal weren’t enough to entice you to make it, the fact that it’s incredibly easy might! It’s perfect for lazy weekend mornings or special occasions when you want to impress your loved ones. Trust us — they’ll be leaping out of bed for this treat!

Close up image of maple syrup being drizzled over blueberry French toast.

The Secret to Making the Best French Toast: Why You’ll Love This Blueberry French Toast Bake

We’re big breakfast people, and French toast is one of our favorite recipes. With endless options like cannoli baked French toast, bananas foster French toast, and churro French toast, we never get bored! 

Plus, it’s such an easy option to prepare in advance and always makes enough to feed the whole family. So, with summer in full swing, it only makes sense to take advantage of our favorite fruit with this blueberry French toast recipe!

It’s crispy on the outside, fluffy in the center, and full of plump blueberries. As a result, it totally elevates your average French toast recipe to a whole new level. It’ll be your new go-to for weekend brunches, holiday gatherings, and weekday breakfasts, too! 

Ingredients You’ll Need

Believe it or not, this easy blueberry French toast casserole comes together with just six simple ingredients. Here’s everything you need: 

  • Croissants – Large croissants replace bread for an extra crisp exterior and a pillowy center. For the best results, allow them to become slightly stale. 
  • Milk – We recommend using whole milk for the richest taste. However, any milk you have on hand will work.  
  • Eggs – These are crucial to form the custard, allowing the liquid to bake and set. 
  • Sugar – Regular granulated sugar helps sweeten the custard for a dessert-like breakfast. 
  • Vanilla Extract – High-quality vanilla extract helps enhance the flavor of the rest of the ingredients. 
  • Blueberries – We prefer to use fresh blueberries, but frozen work, too. You don’t even have to thaw them! Just dust off any ice particles, and add them to the dish. 
Overhead image of croissant pieces in a baking dish with blueberries on top.

Simple Steps for the Best Blueberry French Toast Bake

  1. Create the creamy custard. In a large mixing bowl, whisk the milk, eggs, sugar, and vanilla until well combined. 
  2. Cut the croissants. Slice each croissant into three pieces, and arrange them in a single layer in a large casserole dish
  3. Combine the ingredients. Sprinkle the blueberries over the croissants. Then, pour the egg mixture on top, coating the croissants completely. Press the pieces down gently to ensure they absorb the liquid. 
  4. Soak. Cover the baking dish, and transfer it to the fridge for at least two hours.
  5. Bake. Place the blueberry French toast in a preheated oven. Bake until the top is golden brown and the custard sets. 
  6. Cool and serve. Remove the dish from the oven, allow the French toast to cool slightly, and serve warm drizzled with maple syrup, if desired. 
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Tips to Prevent Soggy French Toast

No one likes soggy French toast! Luckily, it’s easy to avoid. 

  • Use stale croissants. They will be a bit dry and easily absorb the liquid. 
  • Avoid using too much custard. You want the mixture to completely coat the croissants, but they shouldn’t be drowning in liquid. 
  • Bake long enough. Be sure to allow your blueberry French toast to bake long eno

How to Make Stale Croissants in Minutes

Don’t have time for your croissants to turn stale? We’ve got a trick for you! 

  1. Arrange two racks on the upper and lower portion of your oven. 
  2. Preheat the oven to 350 degrees Fahrenheit. 
  3. Place the croissant pieces on a baking sheet, and transfer them to the oven for about ten minutes, tossing halfway through. By the end, the bread will dry out and become perfectly stale! 
A plate of croissant blueberry French toast topped with yogurt, blueberries,  and syrup.

Make Ahead and Storage Options 

This breakfast blueberry French toast casserole is a great option to prepare in advance and enjoy throughout the week. 

  • To Make Ahead: Follow the instructions as listed in the recipe card below, and store them covered in the fridge overnight. The next day, bake as usual, adjusting the time as needed until the custard has set.
  • To Store: Transfer leftovers to an airtight container, and store them in the fridge for up to four days.
  • To Freeze: Cover the baking dish tightly. Or, transfer the French toast to a freezer-safe container, and freeze for up to three months. 
  • To Reheat: Allow your frozen blueberry French toast bake to thaw in the fridge overnight. Then, warm individual portions in the microwave. Or, pop it in the oven at 350 degrees Fahrenheit just until it warms through.  

Serving Suggestions

We love to serve this homemade blueberry French toast bake warm with a drizzle of maple syrup or blueberry sauce. However, it’s also great with toppings like yogurt, whipped cream, cream cheese, extra berries, coconut flakes, and chopped nuts. 

Then, serve it as part of a breakfast spread alongside savory options such as: 

Common Questions About This Blueberry French Toast Casserole Recipe

Do I need to soak my French toast? 

Technically, you can bake this French toast recipe without soaking the bread first. However, soaking it helps infuse the flavors into the bread and prevents it from becoming soggy. 

What kind of bread is best for French toast? 

You can use any type of bread to make French toast. However, thick, crusty varieties like Challah, Brioche, croissants, French bread, or sourdough bread work best. 

Can I use different fruits? 

Yes! Feel free to use whatever fruit you like best. Apples, strawberries, raspberries, and blackberries all work great. 

A plate full of croissant blueberry French toast topped with yogurt, blueberries, and maple syrup.

Croissant Blueberry French Toast Casserole Bake Recipe

5 from 8 votes
Author: Food Dolls
Servings: 6 servings
Prep: 10 minutes
Cook: 30 minutes
Soak Time: 2 hours
Total: 2 hours 40 minutes
Make this croissant blueberry French toast casserole with just six ingredients for an easy breakfast or brunch perfect for every occasion!


  • 1 cup milk
  • 4 large eggs
  • ½ cup sugar
  • 1 teaspoon vanilla extract
  • 6 large croissants sliced into thirds
  • 2 cups blueberries fresh or frozen
  • Optional: maple syrup for serving


  • In a mixing bowl, whisk the milk, eggs, sugar, and vanill extract until well combined.
    1 cup milk, 4 large eggs, ½ cup sugar, 1 teaspoon vanilla extract
  • Cut the croissants into 3 pieces, and arrange them in an even layer in a large baking dish.
    6 large croissants
  • Sprinkle the blueberries evenly over the croissant pieces.
    2 cups blueberries
  • Pour the custard mixture on top, coating all the croissant pieces evenly. Press down gently to ensure the croissants absorb the custard.
  • Cover the baking dish, and transfer it to the fridge for at least 2 hours or up to overnight to soak.
  • Preheat the oven to 350 degrees Fahrenheit (175 degrees Celsius).
  • Bake the blueberry French toast for 30 minutes or until the top is golden brown and the custard is set.
  • Remove from the oven, and set aside to cool slightly.
  • Seve warm drizzled with maple syrup, if desired.
    Optional: maple syrup for serving
  • Store in an airtight container in the fridge for up to 4 days.


To freeze, cover the baking dish tightly. Or, transfer the blueberry French toast to a freezer-safe container, and keep frozen for up to 3 months. Thaw in the refrigerator before reheating.


Serving: 1serving | Calories: 392kcal | Carbohydrates: 52g | Protein: 10g | Fat: 16g | Saturated Fat: 8g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 0.01g | Cholesterol: 152mg | Sodium: 277mg | Potassium: 208mg | Fiber: 3g | Sugar: 30g | Vitamin A: 675IU | Vitamin C: 5mg | Calcium: 91mg | Iron: 2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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More French Toast Recipes

If you enjoy this easy blueberry French toast casserole, try our other delicious French toast recipes! 

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Meet Alia & Radwa

Welcome to Food Dolls! We’re so glad you found us. We are Alia and Radwa, sisters who want to share simple and easy recipes with you. We hope you find recipes here that you enjoy making as much as we do! Learn more about us!

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  1. My family doesn’t like the “eggy” part of French toast, could the number of eggs be reduced in 1/2 then use whipped cream or 1/2 & 1/2 instead of milk to get a similar thick texture for the croissants?