
My weekend brunches got a total makeover with this filling Berry French Toast Casserole. I've ditched the old routine of flipping toast slices one by one. Now I get everything ready the night before and just stick it in the oven while I sip my coffee in my PJs. You'll get a soft, custardy middle with slightly crunchy edges, packed with plump summer berries.
I came up with this dish one summer when my local farmers market had berries so ripe they were sweeter than dessert. These days my family always asks for it whenever we have people staying over or during special weekend celebrations.
- French bread: A bit stale bread actually works better since it soaks up the egg mixture without turning mushy. Go for a loaf with a nice crusty outside and fluffy inside.
- Eggs: Big eggs give the dish its body and rich taste. Country-fresh eggs with deep orange yolks will make your casserole look and taste even better.
- Milk: I find 2% milk hits the sweet spot between too rich and too thin. Its protein helps create that dreamy custard texture throughout.
- Vanilla extract: Don't skimp with fake stuff - real vanilla brings a warm, aromatic quality that lifts the whole dish. Try Mexican or Madagascar vanilla for extra flavor notes.
- Cinnamon powder: This cozy spice brings out the berries' natural sweetness and gives that classic French toast taste. Ceylon cinnamon offers milder flavor than regular cinnamon.
- Brown sugar: Its hint of molasses adds depth and helps create a lightly caramelized top when baking. Either light or dark brown sugar works great.
- Berries: Fresh strawberries and blueberries create little pockets of juicy sweetness throughout. Pick ripe, in-season berries for best flavor and natural sweetness.
- Powdered sugar: A quick sprinkle makes it look fancy and adds a touch more sweetness. You can skip it, but it does make the dish look prettier.
- Maple syrup: Real maple syrup is totally worth the extra cost here. Its complex sweetness goes perfectly with the berries and custard. Look for Grade A Dark for the biggest flavor punch.
Detailed Making Process
- Prep Your Bread:
- Slice the French bread into roughly 1inch chunks until you have enough to fill about three quarters of your baking dish. A bread knife works best for clean cuts without squishing the bread. Watch your chunk size too tiny and youll end up with mush too big and the custard wont soak in properly.
- Mix Up The Custard:
- Grab a big bowl and beat together 8 large eggs milk cinnamon vanilla extract and brown sugar until everything blends smoothly. Make sure theres no streaks of egg white left. This mix will soak into the bread overnight and turn it into something magical.
- Put It All Together:
- Butter a 9x13 inch baking dish really well then spread out your bread chunks evenly. Pour the egg mixture slowly over everything making sure all bread gets a good soaking. Press down gently if needed to help the bread soak it up. Scatter your sliced strawberries and whole blueberries all throughout the dish.
- Let It Rest:
- Wrap the dish tightly with plastic wrap and put it in the fridge for at least 4 hours but better yet overnight. This waiting time isnt just convenient its actually key to getting the right texture. The bread needs time to soak up all that custard so you get one unified dish not just eggy bread.
- Cook It Just Right:
- Heat your oven to 350°F and take the casserole out of the fridge while the ovens warming up. Bake it uncovered for 35 to 50 minutes until the middle feels set and the top turns golden brown. The casserole should puff up a bit and feel firm but still tender when you press the center gently.
- Add The Finishing Touches:
- Let it cool for about 5 minutes after taking it out then dust some powdered sugar over the top. Serve it while its warm with maple syrup for everyone to pour over their portion. The mix of warm casserole and cool syrup creates an amazing taste combo.

The best part of making this dish is seeing my family gather round the table in their pajamas eyes fixed on the oven as I pull out the golden casserole. The kitchen fills with vanilla and cinnamon smells while the berries bubble and create pretty purple and red swirls throughout. Its become our special weekend thing that everyone looks forward to.
Keeping It Fresh
This tasty casserole stays good in the fridge for up to 3 days. Just cover it with plastic wrap once it cools or put portions in sealed containers. When you want some more heat single servings in the microwave for 60 to 90 seconds till warm. If youre reheating the whole thing cover it with foil and warm it in a 325°F oven for about 20 minutes until heated through. It holds up surprisingly well after being in the fridge though the top wont be quite as crispy as when fresh.
Tasty Companions
Though this dish stands perfectly fine on its own I love adding some savory stuff to balance out the sweetness. Some crispy bacon gives that perfect salty contrast and a side of scrambled eggs adds extra protein. For drinks fresh squeezed orange juice cuts through the richness and coffee with a splash of cream goes great with the spices. When I serve it for brunch I often add a fruit salad with melons and citrus for a refreshing touch. It looks amazing when you put the casserole on a wooden board surrounded by all these tasty sides.
Year-Round Versions
What I love about this dish is how easily it changes with the seasons. In summer grab the ripest local berries juicy peaches or fresh cherries. When fall comes switch to apples and pears with an extra dash of cinnamon and nutmeg. During winter holidays try it with cranberries and orange zest while spring calls for strawberry and rhubarb combos. The basic egg mixture stays the same while the fruits change giving you endless options all year long.

Prep Ahead Options
This dish was built for advance prep but you can take it even further during busy times. You can put the whole thing together up to 24 hours before baking with great results. For even longer storage you can actually freeze the unbaked casserole for up to a month. Just put it all together let it soak for at least 4 hours in the fridge then wrap it tight in plastic wrap and aluminum foil before freezing. When youre ready to bake thaw it in the refrigerator overnight then cook as normal adding about 10 extra minutes to the cooking time. This makes it perfect for holiday mornings when you want something special but need to plan way ahead.
Frequently Asked Questions
- → Can I switch up the bread?
Of course! Try challah, sourdough, croissants, or brioche. Even whole wheat works. Slightly stale bread is best for soaking up the eggy goodness.
- → Are frozen berries okay for this?
Definitely! Fresh or frozen berries both work great. With frozen ones, there’s no need to defrost.
- → How can I make this dairy-free?
Swap out regular milk for almond, oat, or any non-dairy option you like. Easy as that!
- → What’s the earliest I can prep this?
You can prep and assemble it a full day ahead. Let everything sit overnight for the best flavors, then bake fresh the next morning.
- → How do I tell if it’s done baking?
Check it starting at 35 minutes. The top should have a slight crunch, and the center should be firm but not dry.
- → What are some great toppings for this?
Add powdered sugar, drizzle maple syrup, or top it with whipped cream. Toss on extra fruits or nuts for variety!