Blueberry French Toast Casserole
on Apr 19, 2019, Updated Nov 19, 2023
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Blueberry French Toast Casserole has a delicious sweet custard with a crispy topping! It’s French toast baked with blueberries and a cinnamon vanilla custard mixture. Bake and serve right away, or make it ahead for overnight French toast. It’s an easy recipe that’s great for breakfast, brunch or dessert!

EASY FRENCH TOAST CASSEROLE
Blueberry French toast casserole is a classic dessert that is easy to make with a few simple ingredients. Just throw everything into a dish and the oven will do its magic!
French toast is stuffed with blueberries and a delicious mixture, all baked to golden perfection! I like to take it to the next level by topping it with ice cream and caramel! It’s one of my favorite blueberry desserts!
PRO TIPS FOR MAKING BLUEBERRY FRENCH TOAST CASSEROLE
- The secret to a great blueberry French toast bake is the right ratio of bread to custard mixture so that you can get the perfect texture. Follow the instructions below to get the right ratio.
- If you don’t bake the assembled casserole right away and leave it in the refrigerator, you need to add 5-10 more baking time.
- If you love cream cheese as much as I do, you can easily turn this recipe into French toast baked with cream cheese. Just swap out the butter for the same amount of cream cheese and you will get a creamier consistency!
- Can I Use Frozen Blueberries for this Recipe? Yes, absolutely! Just defrost and drain them first before adding to your casserole.
What’s the Best Way to Reheat this Casserole? Bake it in the oven at 350°F for 10-15 minutes until cooked through.
HOW TO MAKE BLUEBERRY FRENCH TOAST
- Cut bread into 1-inch cubes and add them into a baking dish.
- Sprinkle blueberries on top.
- Mix together eggs, milk, melted butter, cinnamon, vanilla, sugar and salt.
- Pour the mixture evenly over the cubed bread and blueberries.
- Bake for 35-40 minutes.
- Remove from the oven and cool for 5 minutes.
You can assemble everything the night before and bake the French toast breakfast casserole the next morning!
WHAT KIND OF BREAD TO USE FOR FRENCH TOAST CASSEROLE
Since the bread is the base of this overnight French toast, it’s important to use high-quality bread that can stand up well and doesn’t get mushy! Bread such as brioche, challah, French loaf, and sourdough works well for this recipe.
MAKE AHEAD FRENCH TOAST CASSEROLE
Although you can bake it right away, I prefer to cover it tightly with plastic wrap and refrigerate it overnight. The bread cube will soak up the mixture, resulting in a more custardy and delicious blueberry breakfast casserole!
OVERNIGHT FRENCH TOAST BAKED IN THE OVEN
Heat the oven to 350°F. If you bake it immediately after assembling them, it will take about 35-45 minutes. If you leave it overnight in the refrigerator and bake it the next morning, you need to bake it for about 40-50 minutes until the center is firm and the surface is lightly brown.
Blueberry French toast casserole can be served warm or at room temperature. For leftovers, you can cover it tightly and store it in your refrigerator for up to 3 days. You can also freeze your French toast casserole for up to 3 months.
Blueberry French Toast Bake
Ingredients
Blueberry French Toast Casserole:
- 1 loaf bread, challah, French loaf, etc. Cubed, about 10 cups
- 2 ½ cups blueberries, fresh or frozen
- 5 large eggs, lightly beaten
- 2 cups whole milk
- 1/2 cup granulated sugar
- 1 teaspoon vanilla extract
- ½ teaspoon ground cinnamon
- ¼ cup unsalted butter, melted
- pinch salt
Optional Toppings for Serving:
- powdered sugar
- vanilla ice cream
- caramel sauce
Instructions
- Preheat oven to 350°F (175°C). Grease a 13X9 inch baking dish and set aside.
- On a cutting board, cut bread into 1-inch cubes.
- Add bread cubes into prepared baking dish and sprinkle blueberries evenly across the top.
- In a medium bowl whisk together eggs, milk, melted butter, cinnamon, vanilla, sugar and salt.
- Pour the mixture evenly over the cubed bread and blueberries.
- (If bake immediately) Bake for 35-40 minutes or until a knife inserted in the center comes out clean.
- (If make ahead the night before) Bake for 40-50 minutes.
- Remove from the oven set aside to cool for 5 minutes.
- Dust with optional powdered sugar. Serve with ice cream and drizzle with caramel sauce!
Nutrition
Nutrition information provided is an estimate only and will vary based on ingredient brands and cooking methods used.
This recipe was so yummy! I did make some alternative adjustments because of dairy and substituted Almond milk . I made it and immediately baked it. My leftovers I will have tomorrow morning after it has sat overnight and top with a spoonful of Vanilla Greek yogurt and Turkey bacon on the side.
Have made this breakfast casserole many times. Family favourite!
Hi Sherry, I’m so glad that your family like this recipe. Thanks for letting me know.