Blueberry French Toast Casserole with Vanilla Glaze

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No need to slave away over the stove flipping French toast. Serve everyone at once with this easy and DELICIOUS Blueberry French Toast Casserole. What’s even better is this is a fabulous make-ahead breakfast casserole. Keep it in the fridge or pop it in the freezer for an easy breakfast on a busy morning.

vanilla glaze being drizzled on top of a blueberry baked french toast casserole

Ingredients Needed for French Toast Casserole

Another thing I love about this breakfast casserole is the simplicity of the ingredients. You likely have all of them in your pantry/fridge already!

For French Toast:

Stale loaf of sourdough bread
Eggs
Milk
Butter
Maple syrup
Vanilla extract (here is how to make homemade vanilla extract!)
Fresh or frozen blueberries

For Vanilla Glaze: (optional)

Milk
Vanilla extract
Salt
Powdered sugar

ingredients for blueberry french toast bake, including bread, blueberries, eggs, milk, butter, and maple syrup

Video Tutorial: Blueberry French Toast Casserole

Want to see how easily this make ahead breakfast casserole actually is? Watch below!

Step by Step Instructions: How to Make Blueberry French Toast Casserole

Time needed: 10 minutes.

How to Assemble Blue Berry French Toast Casserole

Prep the Bread
On a cutting board and using a sharp, serrated bread knife, cut the bread into bite-sized cubes. Spray an 8×8 inch casserole dish with cooking spray. Add the bread.
Add the Blueberries
Add 1/2 cup of the blueberries to the top of the bread. Be sure to reserve ½ cup!
Make the Egg Mixture
In a mixing bowl, whisk together the eggs, milk, melted butter, maple syrup, and vanilla.
Add the Egg Mixture & Let it Rest
Pour the egg mixture evenly over the bread and blueberries and toss to make sure every piece of bread is moist. Sprinkle the remaining ½ cup of blueberries over the top. Cover and refrigerate for at least 3 hours and up to 24 hours, if not freezing.
Bake It!
Preheat the oven to 350°F, while the casserole sits on the counter to warm slightly. Bake, uncovered, for 50-60 minutes or until golden brown on top and set in the middle. (If it’s browning too much on top, tent the casserole with foil.) Let the casserole cool for about 10 minutes.
Make a Vanilla Glaze (Optional)
While the casserole cools, stir together the milk, vanilla, and salt in a small bowl. Add the powdered sugar and whisk until a thin, white glaze forms.
Use a spoon to drizzle the glaze over the casserole (you don’t have to use all of it).
Serve Warm!

How to Freeze a French Toast Casserole

One of the beauties of this recipe is it can be made ahead of time. It’s a perfect recipe to serve to groups of people since you can assemble it the night before and just pop it in the oven the morning you want to cook it.

Freeze For Later: Assemble the recipes as directed but don’t make it. Tightly wrap the dish in a few layers of plastic wrap or foil (or a tight-fitting lid), fill out and tape on the freezer label, and freeze.
Prepare From Frozen: Note: You will need to have the ingredients to make the Vanilla Glaze on hand. Thaw completely using one of these safe thawing methods. Bake as instructed!

blueberry french toast casserole dish wrapped in foil

How to Serve Blueberry Baked French Toast

Here are some serving suggestions for a baked french toast recipe.

Serve warm alongside other brunch or breakfast favorites like:

Scrambled eggs (or hard-boiled eggs)
Bacon (try our No Fail Bacon recipe)
Fresh fruit

You can also mix this recipe up in a variety of ways. Here are some ideas:

If you want to skip the Vanilla Glaze, just serve with real maple syrup on the side instead.
Swap raspberries or chopped-up strawberries for the blueberries.
Add some toasted sliced almonds to the top for a little crunch.

a serving of blueberry french toast casserole with vanilla glaze on a plate with a fork

LOVE BLUEBERRIES? CHECK OUT THESE RECIPES!

Rachel Tiemeyer

As co-founder of Thriving Home, Rachel dreams about creating recipes (literally) and uses her husband, her 3 kids, and even the neighbors as guinea pigs several nights a week. She believes that good food has the power to bring families and friends closer together and continues to wake up excited about her job each day, even after 10+ years!