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- 1 loaf of buttery brioche bread, cut into 1-inch cubes - 2 cups plump fresh blueberries, rinsed and drained - 6 large eggs, at room temperature - 2 cups whole milk, preferably warmed - 1/2 cup granulated sugar - 1 teaspoon pure vanilla extract - 1 teaspoon ground cinnamon - 1/4 teaspoon salt - 2 tablespoons unsalted butter, melted - Powdered sugar for dusting (optional) Using fresh blueberries is key. They add sweetness and a burst of flavor. Frozen blueberries can work, but they release more juice and may make the dish soggy. Choosing the right bread also matters. Brioche is rich and soft, making it perfect for this casserole. It soaks up the egg mixture well, giving you a creamy texture. If you can’t find brioche, challah is a good option too. These ingredients come together for a delicious breakfast. They create a warm, sweet dish that feels like a hug on a plate. Don't skip on the details, as they make a big difference in taste and texture! {{ingredient_image_2}} Start by making the egg mixture. In a large bowl, whisk together six eggs. Add two cups of warmed whole milk, 1/2 cup of sugar, one teaspoon of vanilla extract, one teaspoon of ground cinnamon, and 1/4 teaspoon of salt. Mix until it is smooth and frothy. Next, let's cube the brioche bread. Take a loaf of buttery brioche and cut it into 1-inch cubes. This size helps it soak up the egg mixture well. Make sure to cut evenly so every piece cooks the same. Now, it's time to add blueberries. You will need two cups of fresh blueberries. Rinse and drain them first. Gently fold the blueberries into the bread cubes, making sure they are spread out evenly. This helps each bite be full of berry goodness. Now, layer your ingredients in the greased baking dish. First, place the bread cubes in an even layer at the bottom. Then, sprinkle the blueberries over the bread. Pour the egg mixture over the bread and blueberries. Press down lightly on the bread to help it soak up the egg mixture. This step is key to getting a tasty, custardy texture. After that, drizzle two tablespoons of melted butter over the top. This adds richness and flavor. Cover the dish tightly with aluminum foil. Let it rest for about 30 minutes at room temperature. If you can, refrigerate it overnight to let the flavors mix even better. Preheat your oven to 350°F (175°C). Place the covered dish in the oven and bake it for 30 minutes. After that, remove the foil. Bake for another 15 to 20 minutes. To check for doneness, insert a toothpick into the center. If it comes out clean, the casserole is ready. You want the top to be golden brown. This gives it a nice look and a slight crunch. Once baked, let the casserole cool for a few minutes before slicing. Enjoy the deliciousness! To make sure your bread absorbs the custard, use stale brioche. Fresh bread can be too soft. Cut it into 1-inch cubes and let it sit out for a few hours. Warming your milk and eggs helps them mix better. This step makes the custard smooth and rich. Greasing your baking dish well is key. Use unsalted butter or non-stick spray. This prevents sticking and helps with easy serving. Coat the dish evenly to ensure every piece comes out nicely. For garnishing, dust your casserole with powdered sugar. It adds a sweet touch and looks great. Serve it warm with a bowl of maple syrup. The syrup complements the blueberries perfectly. Pair your casserole with a hot cup of coffee or tea. The warmth of the drink enhances the flavors. You can also add extra fresh blueberries on the side for a pop of color. Enjoy creating a beautiful breakfast spread that everyone will love! Pro Tips Use Day-Old Bread: For the best texture, use slightly stale brioche bread. This will help the bread absorb the custard mixture without becoming too soggy. Mix-in Variations: Feel free to add other fruits like raspberries or sliced bananas for a fun twist on flavors, or incorporate nuts for added crunch. Make Ahead: Preparing the casserole the night before allows the flavors to meld beautifully, making for a quick and easy breakfast option in the morning. Watch the Baking Time: Keep an eye on the casserole in the last few minutes of baking to ensure it doesn’t over-brown. You can cover it loosely with foil if needed. {{image_4}} You can change the flavor of your casserole easily. Try using strawberries or raspberries instead of blueberries. They will add a nice sweetness and color. You can also mix in nuts like pecans or walnuts for a crunch. Chocolate chips are a fun option if you want a sweeter touch. If you need a gluten-free version, use gluten-free bread. This will still give you the soft texture you want. Just make sure to check for gluten-free oats in other ingredients, if you choose to add them. To make this dish dairy-free, try using almond or oat milk instead of whole milk. You can also use a dairy-free butter. This will keep the rich taste without the dairy. If you're looking to cut back on sugar, try using a sugar substitute. Honey or maple syrup can work well. They add a nice flavor too. For a vegan version, swap the eggs with a flaxseed mixture. Mix one tablespoon of ground flaxseed with three tablespoons of water for each egg. This will help bind your casserole just like eggs do. Use plant-based milk and a vegan butter to keep it vegan-friendly. To keep your casserole fresh, store it in the fridge. Place it in an airtight container. This helps keep moisture in and prevents it from drying out. If you have a lot left, you can cover the dish tightly with plastic wrap. Just be careful not to let it touch the food. When you're ready to eat, simply reheat it in the oven or microwave. For reheating, I suggest using the oven. Preheat it to 350°F (175°C). Place the casserole in an oven-safe dish and cover it with foil. Heat for about 20 minutes. This way, the texture stays nice. You want it warm all the way through without making it soggy. You can freeze the casserole before or after baking. If you choose to freeze it before baking, assemble it as directed. Then cover it tightly with foil or plastic wrap. You can freeze it for up to three months. If you decide to freeze it after baking, let it cool completely first. Then cut it into pieces, wrap each piece, and place them in a freezer bag. This makes it easy to grab a slice later. When you're ready to enjoy your frozen casserole, thaw it in the fridge overnight. You can reheat it in the oven the same way as before. This method keeps the flavor and texture intact. Enjoy your delicious Blueberry French Toast Casserole anytime! Yes, you can prepare this casserole the night before. After you mix the bread and blueberries, pour the egg mixture over them. Then, cover the dish tightly with foil. Place it in the fridge overnight. This helps the bread soak up the custard. Before baking, let it sit at room temperature for about 30 minutes. This simple step makes sure it cooks evenly. If you don't have brioche, don't worry! You can use challah, French bread, or even whole wheat bread. Each type offers a unique taste and texture. Just cut the bread into 1-inch cubes. This will help the custard soak in well. Choose a bread that is soft and slightly sweet for the best result. Look for a golden brown top and a firm texture. After 30 minutes, remove the foil. Bake for another 15-20 minutes. Insert a toothpick into the center. If it comes out clean, your casserole is done. The edges should be puffed, and the center should not jiggle. Yes, you can use frozen blueberries for this dish. Just rinse them under cold water and drain well. Frozen blueberries may release more juice than fresh ones. This can make the casserole a bit wetter. If you like, add a touch more bread to help absorb the extra moisture. This blog post covered everything you need for a great Blueberry French Toast Casserole. We talked about essential ingredients, like fresh blueberries and the right bread. I shared step-by-step instructions for prepping, assembling, and baking. You can try fun variations or make dietary adjustments to fit your needs. In the end, with some tips for storage and serving, you’re ready to impress. Enjoy making this delicious dish for yourself and others!

Blueberry Bliss French Toast Casserole

A delightful breakfast or brunch centerpiece featuring buttery brioche bread and fresh blueberries, baked to golden perfection.
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 1 hour
Total Time 1 hour 15 minutes
Course Breakfast
Cuisine American
Servings 8

Ingredients
  

  • 1 loaf buttery brioche bread, cut into 1-inch cubes
  • 2 cups plump fresh blueberries, rinsed and drained
  • 6 large eggs, at room temperature
  • 2 cups whole milk, preferably warmed
  • 1 2 granulated sugar for sweetness
  • 1 teaspoon pure vanilla extract for depth of flavor
  • 1 teaspoon ground cinnamon to add warmth
  • 1 4 teaspoon salt to enhance flavors
  • 2 tablespoons unsalted butter, melted for richness
  • to taste Powdered sugar for a light dusting (optional)

Instructions
 

  • Preheat your oven to 350°F (175°C). Generously grease a 9x13-inch baking dish with butter or non-stick cooking spray to prevent sticking.
  • In a large mixing bowl, vigorously whisk together the eggs, warmed milk, granulated sugar, vanilla extract, ground cinnamon, and salt until the mixture is well blended and frothy.
  • Carefully place the bread cubes into the greased baking dish, ensuring they are evenly distributed across the bottom.
  • Gently fold in the fresh blueberries, making sure they are well dispersed throughout the bread cubes for even flavor.
  • Pour the prepared egg mixture evenly over the bread and blueberry mixture, making sure all the bread pieces are well soaked. Lightly press down on the top to encourage the bread to absorb the custard.
  • Drizzle the melted butter over the surface of the casserole, adding a rich flavor to the top.
  • Cover the dish tightly with aluminum foil and let it rest for about 30 minutes at room temperature. For the best results, refrigerate the casserole overnight to allow the flavors to meld beautifully.
  • When ready to bake, place the covered dish in the preheated oven and bake for 30 minutes. After this time, remove the foil and continue baking for an additional 15-20 minutes, or until the top is golden brown and a toothpick inserted into the center comes out clean.
  • Once baked, remove the casserole from the oven and allow it to cool for a few minutes before slicing.

Notes

Before serving, dust the top of the casserole with powdered sugar and serve warm with maple syrup and extra blueberries.
Keyword blueberries, breakfast, brunch, casserole, French toast