Heavenly Overnight Cinnamon Apple Baked French Toast Casserole

There’s something magical about waking up to a warm, sweet-smelling breakfast bubbling in the oven. This Overnight Cinnamon Apple Baked French Toast Casserole is the ultimate make-ahead morning comfort food. Filled with spiced apples, buttery bread cubes, and a custardy cinnamon vanilla soak, this casserole bakes into the perfect cozy breakfast—ideal for weekends, holidays, or any time you want something special without morning prep.

If you’re a fan of sweet breakfast casseroles, this recipe will become a new favorite. Plus, it’s easy to prep the night before, so you can enjoy a stress-free morning.

Looking for more cozy breakfast ideas? Try these fluffy Pumpkin Cottage Cheese Pancakes or our ultra-satisfying Crack Breakfast Casserole too.

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What is an Overnight French Toast Casserole?

An overnight French toast casserole is a baked breakfast dish made by soaking cubed or sliced bread in a custard of eggs, milk, and spices—then refrigerating it overnight before baking. This version features sweet-tart apples and warm cinnamon, giving it all the flavor of apple pie wrapped in rich French toast layers.

Unlike traditional French toast cooked on a griddle, this baked French toast casserole comes together in one pan, making it ideal for serving a crowd.

Want something quicker? You can adapt this into a French toast casserole not overnight by soaking the bread for just 30 minutes before baking—more on that below.

Key Ingredients for the Perfect Apple French Toast Casserole

This dish brings together pantry basics and seasonal produce into one irresistible bake. Here’s what you’ll need:

Ingredients:

• 1 loaf French bread (about 14–16 oz), cut into 1-inch cubes
• 6 large eggs
• 2 cups whole milk
• 1/2 cup heavy cream
• 1/2 cup granulated sugar
• 1/2 cup packed brown sugar
• 2 teaspoons vanilla extract
• 2 teaspoons ground cinnamon
• 1/4 teaspoon ground nutmeg
• 2 large apples (such as Granny Smith or Honeycrisp), peeled and diced
• 2 tablespoons butter

Optional Topping:

• 1/2 cup flour
• 1/2 cup packed brown sugar
• 1/2 teaspoon cinnamon
• 1/4 cup butter, cold and cubed

This streusel topping bakes into a delicious, crumbly finish that pairs beautifully with the custard and apples.

If you’re in the mood for savory sides, pair it with Garlic Butter Corn with Melty Cheese or keep it sweet with Mini Pumpkin Breads with Cinnamon Swirl.

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Step-by-Step Instructions: How to Make Overnight Cinnamon Apple Baked French Toast Casserole

Start by greasing a 9×13-inch baking dish. Spread the cubed bread evenly in the pan.

In a skillet over medium heat, melt 2 tablespoons butter and sauté the diced apples with a sprinkle of cinnamon until just tender—about 5–7 minutes. Spread the apples over the bread cubes.

In a large bowl, whisk together the eggs, milk, cream, sugar, brown sugar, vanilla, cinnamon, and nutmeg. Pour the mixture evenly over the bread and apples, pressing down lightly to help the bread absorb the custard.

If you’re using the optional streusel topping, mix the flour, brown sugar, cinnamon, and cold butter in a bowl until crumbly. Cover and refrigerate separately.

Cover the casserole tightly with foil or plastic wrap and refrigerate overnight.

In the morning, preheat the oven to 350°F (175°C). Remove the casserole from the fridge and let sit at room temperature for 20–30 minutes. Sprinkle the streusel topping over the casserole, then bake uncovered for 45–50 minutes, or until golden brown and set in the center.

Let cool for 10 minutes before serving.

Kitchen Equipment You’ll Need

Making this recipe is easy with just a few basic tools:

• 9×13-inch baking dish
• Large mixing bowl
• Medium skillet
• Whisk
• Spatula
• Knife and cutting board

This equipment is also perfect for preparing other breakfast favorites like Mini Pancake Cereal or Cinnamon Roll Breakfast Bake.

Make-Ahead Tips and Storage Instructions

This recipe was made for planning ahead. Here are some tips:

• Assemble the entire casserole the night before, cover tightly, and refrigerate for up to 24 hours.
• You can also prep the streusel in advance and keep it in a separate container.
• Leftovers can be stored in an airtight container in the fridge for up to 3 days.
• Reheat individual servings in the microwave or place the dish back in the oven at 300°F until warm.

You can even freeze this casserole (unbaked) for up to one month. Let thaw overnight in the fridge before baking.

Variations: From French Toast Casserole Not Overnight to Egg Nog and Caramel Versions

Short on time? You can make a quick version by letting the bread soak for just 30–45 minutes instead of overnight. Then bake as directed. This works well with denser breads or when you toast your bread cubes ahead.

Want something seasonal? Try an Overnight Egg Nog French Toast Casserole by replacing the milk with egg nog and reducing sugar slightly.

Craving something decadent? A drizzle of caramel sauce before baking turns this into an Overnight Caramel French Toast Casserole that’s holiday-brunch-worthy.

Or, keep it fruity and bright with this Apple Fritter Donuts recipe on the side for a full apple-themed breakfast spread.

Common Mistakes to Avoid for a Non-Soggy Overnight French Toast Casserole

If you’ve ever had soggy French toast casserole, you know how disappointing it can be. Here’s how to get that perfect texture:

• Use stale or day-old bread: Fresh bread will become mushy quickly.
• Let it rest before baking: After removing from the fridge, give it 20–30 minutes at room temperature.
• Don’t overdo the custard: Stick to the measurements so your bread isn’t drowning.
• Use the right dish size: A 9×13-inch pan gives the ideal bread-to-custard ratio.

Want another casserole with just the right texture? Check out this cheesy, crowd-pleasing Cheesy Pasta Bake with Pumpkin Tomato Sauce.

Serving Suggestions for a Sweet Breakfast Casserole

This apple French toast casserole is already rich and flavorful, so pair it with simple sides and beverages:

• Fresh fruit or a fruit dip
• Scrambled eggs or savory sausage patties
• A glass of Lavender Lemonade or your favorite coffee

Top each serving with maple syrup, whipped cream, or powdered sugar for a dessert-like finish.

Can I Bake It in an 8×8 Pan? Adjusting for Smaller Servings

Yes, you can scale the recipe down to fit an 8×8 baking dish. Halve all the ingredients and reduce the bake time to 30–35 minutes. This version is great for smaller households or weekday baking.

Smaller batches are perfect when making other personal-sized treats like Strawberry Cheesecake Cinnamon Rolls or Pumpkin Cheesecake Cookies.

Apple Varieties: Best Types of Apples to Use

Choosing the right apple makes a big difference:

• Granny Smith: Tart and firm, holds up well
• Honeycrisp: Sweet and juicy, great flavor contrast
• Braeburn or Fuji: Balanced sweetness and good texture

Avoid soft varieties like Red Delicious, which can become mushy.

Overnight vs. Fresh Bake: Which Is Better?

Overnight soaking offers deeper flavor and softer texture, ideal for leisurely weekends or special brunches. But if you’re short on time, a same-day version still works beautifully. Just make sure your bread is sturdy enough to absorb the custard quickly without falling apart.

Try a no-soak breakfast bake like Tater Tot Breakfast Bowl if you’re really pressed for time.

Holiday-Ready Twist: Overnight Egg Nog French Toast Casserole Inspiration

Planning a holiday brunch? Swap the milk and cream with egg nog for a festive version. Add a pinch of nutmeg, and top with powdered sugar and dried cranberries.

Pair it with holiday sweets like Pumpkin Cheesecake Truffles or Pumpkin Dump Cake for a magical spread.

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Apple French Toast Casserole FAQ

Can I use brioche instead of French bread?
Yes! Brioche or challah adds a rich, buttery taste.

Do I have to peel the apples?
Peeling is recommended for a softer texture, but it’s optional.

Can I use plant-based milk and butter?
Absolutely—use almond milk, oat milk, or dairy-free cream, and plant-based butter.

How long does it last?
3 days in the fridge or up to 1 month in the freezer (unbaked).

Final Thoughts: A Cozy Breakfast Favorite to Make Again and Again

This Overnight Cinnamon Apple Baked French Toast Casserole brings everything you love about fall flavors and cozy mornings into one dish. It’s incredibly easy to prep ahead, versatile enough for any crowd, and guaranteed to fill your home with the smell of warm cinnamon and apples.

Whether you’re hosting brunch, enjoying a holiday morning, or simply want to make breakfast special, this casserole delivers every single time. Don’t forget to explore more comforting breakfasts in our Breakfast Category for inspiration.

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