This Slow Cooker French Toast Casserole is a warm and cozy dish that’s easy to make. Just layer bread, eggs, and sweet spices, then let it cook while you relax!
Imagine waking up to the smell of this yummy casserole—it’s like a warm hug for breakfast! I love serving it with maple syrup on top; it adds a perfect touch to every bite!
Key Ingredients & Substitutions
Bread: Challah or brioche gives the dish a sweet, fluffy texture. If you can’t find them, you can substitute with French bread or even a loaf of day-old white bread. Slightly stale bread works best, as it soaks up the egg mixture better.
Eggs: Eggs provide structure to the casserole. If you’re looking for an egg-free option, try using flax eggs (1 tablespoon of ground flaxseed mixed with 2.5 tablespoons of water per egg) or a commercial egg replacer for vegan options.
Milk and Cream: Whole milk and heavy cream create a rich custard. You can replace them with almond milk or oat milk, but avoid low-fat versions if you want creaminess.
Sugars: Using both granulated and brown sugar adds layers of sweetness. You can reduce the sugar by using sweetener alternatives like maple syrup or coconut sugar, adjusting to taste.
Spices: Cinnamon and nutmeg add warmth and flavor. Feel free to mix in a bit of pumpkin spice or omit them if you’re not a fan!
How Do I Prevent My Casserole from Sticking to the Slow Cooker?
Keeping your casserole from sticking is essential for easy serving. Here’s how:
- Start by greasing the slow cooker insert with butter or a non-stick spray. This creates a barrier between the casserole and the pot.
- If you prefer an extra layer of security, you can line the bottom with parchment paper, with edges coming up the sides.
- Always let the casserole sit for 10 minutes after cooking. This helps it firm up a bit and makes it easier to slice and remove from the pot.
Following these tips will help ensure each spoonful comes out clean and looks great on your plate!

Slow Cooker French Toast Casserole
Ingredients You’ll Need:
For the Casserole:
- 1 loaf (about 12-16 slices) of challah or brioche bread, cut into large chunks
- 8 large eggs
- 2 cups whole milk
- 1/2 cup heavy cream
- 3/4 cup granulated sugar
- 1/4 cup brown sugar, packed
- 2 tablespoons vanilla extract
- 1 tablespoon ground cinnamon
- 1/2 teaspoon ground nutmeg (optional)
- 1/4 teaspoon salt
- 4 tablespoons unsalted butter, melted
For Serving:
- Whipped cream
- Maple syrup
How Much Time Will You Need?
This delicious French toast casserole takes about 15 minutes to prepare, plus cooking time of 6 to 7 hours on low or 3 to 4 hours on high in the slow cooker. Just prep it in the morning and enjoy a warm, sweet breakfast later!
Step-by-Step Instructions:
1. Prepare the Slow Cooker:
Start by greasing the inside of your slow cooker insert with butter or a non-stick spray. This will help prevent the casserole from sticking to the pot and make it easier to serve later.
2. Arrange the Bread:
Take your cubed bread and place it evenly in the slow cooker, packing it down gently. This will create a nice base for the casserole.
3. Mix the Custard:
In a large mixing bowl, whisk together the eggs, milk, heavy cream, granulated sugar, brown sugar, vanilla extract, cinnamon, nutmeg (if you’d like to add it), and salt. Mix until everything is fully combined and smooth.
4. Combine Bread and Custard:
Pour the egg mixture evenly over the bread cubes in the slow cooker. Press the bread down gently using a spatula or your hands, ensuring it soaks up the custard mixture well.
5. Add Butter:
Drizzle the melted butter over the top of the bread and custard mixture. This will add richness and flavor to your casserole!
6. Cook the Casserole:
Cover the slow cooker with a lid. Cook on low for 6 to 7 hours, or on high for 3 to 4 hours, until the casserole is set. You can check if it’s done by inserting a knife in the center—it should come out clean.
7. Let It Rest:
After cooking, turn off the slow cooker and let the casserole sit for about 10 minutes. This helps it firm up a little, making it easier to serve.
8. Serve and Enjoy:
To serve, spoon a generous portion onto each plate. Top with fluffy whipped cream and drizzle with warm maple syrup for a delightful finish!
Enjoy this delicious and comforting slow cooker French toast casserole that’s perfect for busy mornings or leisurely brunches!
Can I Use Different Types of Bread?
Absolutely! While challah or brioche are ideal for their texture and sweetness, you can also use French bread, a hearty sourdough, or even day-old white bread. Just ensure the bread is a bit stale for the best absorption of the custard.
Can I Make This Recipe the Night Before?
Yes, you can prep the casserole the night before! Simply follow the steps to combine the bread and custard, then cover and refrigerate overnight. In the morning, cook it straight from the fridge; just add an extra 30 minutes to the cooking time.
How to Store Leftovers?
Leftovers can be stored in an airtight container in the fridge for up to 3 days. To reheat, simply warm individual portions in the microwave or oven until heated through. You might want to add a splash of milk to keep it moist!
Can I Freeze the Casserole?
Yes, you can freeze the casserole before cooking. Just assemble it in a freezer-safe dish and wrap it tightly. When ready to eat, thaw in the fridge overnight, then cook as directed. For best quality, use within 2-3 months.
