August 2, 2022

Brioche French Toast Casserole

Prep Time: 20 mins
Cook Time: 1 hr
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This Brioche French Toast Casserole is the best! It's buttery and rich and full of cinnamon flavor. Best part?

It's an easy recipe that requires minimal prep time! If you're looking for an easy breakfast casserole that the whole family will love, this recipe is for you!

If you love an easy french toast bake, try my strawberry french toast casserole! It's the perfect holiday morning treat!

brioche french toast casserole with maple syrup on top.
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This is easily the best french toast I've ever made. Ever make a dish, take a bite, and shock yourself at how good it is?

This is one of those recipes.

It's got that classic french toast taste. Buttery brioche bread, dipped in a mix of brown sugar, whole milk, vanilla extract, cinnamon, and eggs baked in a butter and topped with maple syrup and fresh berries! Can you say "perfect breakfast"? It's so so good.

brioche french toast casserole in a baking dish topped with blueberries and whipped cream.

Sunday mornings as a kid were not complete without a baked french toast casserole. And don't get me started on Christmas morning - between my mom's french toast recipe and my Dad's eggs, this hearty breakfast kept us full until dinner.

Now this easy french toast casserole recipe is my childhood favorite - but taken to a whole new level. It's thick slices of brioche bread dipped in a rich custard mixture and cooked in butter and brown sugar.

For toppings? I used a little whipped cream, fresh blueberries, and buttermilk syrup. Nothing beats a delicious breakfast, it's literally my favorite easy breakfast casserole that everyone loves!

ingredients to make french toast casserole - brioche bread, brown sugar, butter, milk, eggs, cinnamon, nutmeg, and vanilla extract.

Ingredients

Brioche bread: this is my favorite bread for french toast!

Butter: for that rich buttery taste!

Eggs: eggs act as a binding agents and really help to seal in all of the flavor from the sugar, cinnamon, and nutmeg. Keep in mind you'll need a large mixing bowl to whisk everything together!

Milk: milk works with the eggs to form the basis of the custard.

Brown sugar: for sweetness and beautiful caramel flavors that make this easy brioche french toast delectable!

Cinnamon and Nutmeg: a necessity in any french toast recipe!

Kosher salt: I prefer using kosher salt because it's less salty than table salt. It also dissolves well in the custard and really brings all of the flavors together.

How to Make Brioche French Toast

  • Slice brioche bread into thick slices.
  • Melt butter in a bowl and add ¼ cup of brown sugar. Whisk together and pour into a 9x13 baking dish or casserole dish.
  • Make the custard - add room temperature eggs, milk, remaining 1 cup of brown sugar, vanilla extract, cinnamon, nutmeg, and kosher salt to a large bowl. Whisk together until smooth.
  • Dip bread slices into the egg mixture and make sure both sides are coated. Place bread into the prepared baking dish on top of the butter/sugar mixture. Repeat until all bread is dunked into the mixture.
  • Pour remaining leftover custard on top of the bread. Either bake immediately or place in the refrigerator for an hour, up to overnight, and bake casserole at 375 degrees F for 45 minutes, covered with aluminum foil.
sliced brioche bread in a casserole dish.
  • Remove aluminum foil and bake for another 15 minutes, until golden brown.
  • Top the finished dish with whipped heavy cream, powdered sugar, fresh fruit, chocolate chips, or any of your favorite toppings!
individual slices of french toast on a plate topped with whipped cream and blueberries and maple syrup.

Tips

  • Having a busy morning? Turn this into an overnight brioche french toast casserole by prepping it the night before and simply pop it in the oven the next morning!
  • Stale bread is ideal for this sweet breakfast casserole but fresh bread works too! Don't fret if you don't have old bread.
  • This is a great recipe for special occasions, the holidays, a mother’s day brunch, or just a really good make ahead breakfast for easter morning!

Substitutions

  • Try using challah bread if you love a buttery textured bread.
  • If you're fancy and love making bread, try making a homemade brioche loaf and use that in this recipe!
  • If you're watching your salt, feel free to use unsalted butter instead of salted butter.
  • Take this recipe to the next level and add a single layer of cinnamon streusel on top of the casserole.

Storing Leftovers

Store leftovers in an airtight container or cover with plastic wrap and place in the refrigerator. It will last for about 3-4 days.

Reheating French Toast

To reheat your leftover french toast, I recommend placing in the oven or air fryer. I do not recommend microwaving it as it can become soggy.

Freezing French Toast

After the french toast is baked, you can store it in the freezer for up to 2 months. Make sure to allow the french toast to cool completely then wrap tightly and place in a freezer safe airtight container.

brioche french toast casserole in a casserole dish topped with blueberries, whipped cream, and chopped walnuts.

What to eat with French Toast

French toast is really good with classic breakfast side dishes like eggs, home fries, hash browns, or event a bowl of oatmeal or cereal. Also, bacon or sausage of course too! I love slathering some softened butter on my french toast and enjoying it with a cup of coffee!

Frequently Asked Questions

Should brioche be stale for french toast?

No, it does not have to be stale. If you're worried about your bread being too soft, you can toast it in the oven prior to dipping into the milk mixture, however, this is not mandatory. For this recipe, fresh or stale toasts works.

What is the best bread to use for french toast?

Brioche, Challah, Texas Toast or Pullman Loaf, French bread, or Croissants are all ideal breads for french toast. For the best results, use thick, dense breads that absorb liquid well.

How long should french toast soak?

For this recipe, you do not need to soak the french toast (unless you want to). However, many french toast recipes call for soaking french toast for at least 20 minutes. If you want to prepare this as an overnight french toast casserole recipe, you can soak it in the refrigerator, overnight, covered with plastic wrap to enjoy the next day.
When dunking the french toast in the custard, the individual pieces of french toast only need to be coated in the mixture for about 5-10 seconds.

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brioche french toast casserole with maple syrup on top.

Brioche French Toast Casserole

This Brioche French Toast Casserole is the best! It's buttery and rich and full of cinnamon flavor. Best part? It's an easy recipe that requires minimal prep time! If you're looking for an easy breakfast casserole that the whole family will love, this recipe is for you!
Serving: 8
Prep Time: 20 mins
Cook Time: 1 hr
Total Time: 1 hr 20 mins
Calories: 486kcal

Equipment

  • 9x13 baking dish
  • Mixing Bowls

Ingredients

  • 1 loaf Brioche Bread
  • ½ cup Salted Butter
  • 1 ¼ cup Brown Sugar
  • 6 Eggs
  • 1 cup Whole Milk
  • 1 tbsp Vanilla Extract
  • 2 tsp Cinnamon
  • ¼ tsp Nutmeg
  • ½ tsp Kosher Salt

Directions

  • Preheat oven to 375 degrees F.
  • Slice brioche bread into thick slices.
  • Melt butter in a bowl and add ¼ cup of brown sugar. Whisk together and pour into a 9x13 baking dish.
  • Make the custard - add eggs, milk, remaining 1 cup of brown sugar, vanilla extract, cinnamon, nutmeg, and kosher salt to a large bowl. Whisk together until smooth.
  • Dip bread slices into the egg mixture and make sure both sides are coated. Place bread into the prepared baking dish on top of the butter/sugar mixture. Repeat until all bread is dunked into the mixture. Pour remaining leftover custard on top of the bread. (If preparing french toast for the next day, cover with plastic wrap and set in the fridge overnight)
  • Cover with aluminum foil and bake for 45 minutes, then remove aluminum foil and continue to bake for another 15 minutes.
  • Top the finished dish with whipped heavy cream, fresh fruit, chocolate chips, or any of your favorite toppings!

Notes

Tips
  • Having a busy morning? Turn this into an overnight brioche french toast casserole by prepping it the night before and simply pop it in the oven the next morning!
  • Stale bread is ideal for this breakfast recipe but fresh bread works too! Don't fret if you don't have old bread.
  • This is a great recipe for special occasions, the holidays, a mother’s day brunch, or just a really good make ahead breakfast for easter morning!
Substitutions
  • Try using challah bread if you love a buttery textured bread.
  • If you're fancy and love making bread, try making a homemade brioche loaf and use that in this recipe!
  • If you're watching your salt, feel free to use unsalted butter instead of salted butter.
  • Take this recipe to the next level and add a single layer of cinnamon streusel on top of the casserole.

Nutrition

Calories: 486kcal | Carbohydrates: 55g | Protein: 10g | Fat: 25g | Saturated Fat: 14g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 0.5g | Cholesterol: 230mg | Sodium: 499mg | Potassium: 145mg | Fiber: 0.3g | Sugar: 35g | Vitamin A: 948IU | Vitamin C: 0.02mg | Calcium: 118mg | Iron: 1mg
Course: Breakfast
Cuisine: American

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