Quick Blueberry French Toast Casserole

Indulging in a warm, gooey slice of French toast casserole can feel like a warm hug on a chilly morning. Our Quick Blueberry French Toast Casserole combines the luxuriousness of brioche with the burst of fresh blueberries, ready to serve in just 40 minutes. Its simplicity lies in the layering technique, allowing the bread to soak up all those wonderful flavors.

This recipe is perfect for brunch gatherings or family breakfasts. You can make it ahead of time the night before and store it in the fridge, so all you have to do is pop it in the oven when you’re ready to eat.

Why You’ll Love This Recipe

• The rich, custardy texture pairs perfectly with the juicy blueberries.
• It’s a make-ahead dish, saving you time on busy mornings.
• Baking brings out the natural sweetness, creating a golden, crispy top.
• Minimal cleanup with just one baking dish for both preparation and serving.

What You’ll Need

Gather these ingredients to create a delicious breakfast treat.

For the Casserole

• 1 loaf of bread (preferably brioche or challah), cut into cubes
• 2 cups fresh blueberries

For the Egg Mixture

• 6 large eggs
• 2 cups milk
• 1/2 cup sugar
• 1 teaspoon vanilla extract
• 1 teaspoon cinnamon
• 1/4 teaspoon salt

For Greasing

• Butter (for greasing)

Use whole milk for a creamier texture.

Substitutions & Swaps

• Use stale bread for better absorption.
• Frozen blueberries can replace fresh ones.
• Omit sugar for a sugar-free version.
• Almond milk works well for lactose-free.

How to Make It

Follow these simple steps to create your casserole masterpiece.

Preheat and Grease

Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish with butter.

Layer Bread

Cut the bread into cubes and place half of them in the greased dish.

Add Blueberries

Sprinkle half of the blueberries over the bread cubes.

Whisk Egg Mixture

In a mixing bowl, whisk together the eggs, milk, sugar, vanilla extract, cinnamon, and salt.

Pour and Layer

Pour the egg mixture over the bread and blueberries, then top with the remaining bread cubes and blueberries.

Press Down

Press down gently to soak the bread.

Bake

Bake for 30-35 minutes or until the top is golden brown and the casserole is set.

Serve

Serve warm, optionally dusted with powdered sugar and more blueberries on top.

How to Store It

Fridge: Store in an airtight container for up to 3 days.
Freezer: Yes, freeze before baking for quicker prep later.
Reheat: Microwave in 30-second intervals until warmed through.

Tips for Best Results

• Use day-old bread for optimal soaking.
• Let it rest for 10 minutes before serving.
• Add a dash of nutmeg for extra flavor.
• Feel free to mix in other berries or nuts.

Serving Suggestions

• Pair with maple syrup or whipped cream.
• Serve alongside crispy bacon for a savory contrast.
• Perfect for holiday gatherings or special occasions.