Spring Brunch Strawberry French Toast

My sister texted me at 8 AM on Easter Sunday asking if I could bring brunch for twelve people, and I had roughly three hours to pull it together. I remembered watching my mom assemble a French toast casserole the night before Christmas, how she'd just pour everything together and let the oven do the work while she finished getting ready. That's when it hit me—this strawberry version would be perfect, especially with spring berries finally showing up at the market. The beauty of it is that you make it ahead, sleep in if you want, and then just bake while people are still nursing their coffee.

That Easter morning, I pulled the casserole out of the oven twenty minutes before everyone arrived, and the kitchen smelled like vanilla and caramelized butter—the kind of smell that makes people walk in and immediately feel like something special is happening. My nephew asked if we were at a fancy restaurant. It wasn't, but watching him go back for thirds made me realize this recipe does something simple but powerful: it turns breakfast into an event.

Ingredients

• Brioche or challah bread: Use a sturdy loaf with a bit of sweetness—it soaks up the custard without falling apart and gets slightly crispy at the edges.
• Eggs: Six large eggs create that custard richness; don't skimp or substitute with whites alone.
• Whole milk and heavy cream: The combination gives you both body and luxury; using all milk makes it thinner, all cream makes it too rich.
• Granulated sugar: Balances the eggs and adds subtle sweetness to the custard itself.
• Vanilla extract: Pure vanilla matters here because it's a quiet but essential flavor that ties everything together.
• Cinnamon and salt: Just enough spice to hint at warmth without overpowering the fruit.
• Fresh strawberries: Spring strawberries are softer and sweeter; if buying in winter, look for locally sourced or consider frozen (thawed and drained).
• All-purpose flour and brown sugar: The streusel topping provides textural contrast and a slight caramel note from the brown sugar.
• Cold unsalted butter: Cold butter is essential for that crumbly topping texture; pull it from the fridge right before you need it.
• Maple syrup: Serve it warm alongside for people who want that extra touch of sweetness and moisture.

Instructions

Preheat and prepare:

Heat your oven to 350°F (175°C) and grease a 9x13 inch baking dish with butter so nothing sticks. A light hand with the grease is all you need.

Layer the bread and berries:

Cut your bread into roughly one-inch cubes and spread them evenly across the dish, then scatter the sliced strawberries throughout. Don't worry about making it perfect; the cubes will shift once you pour the custard.

Make the custard:

Crack your eggs into a large bowl and whisk them together, then add the milk, cream, granulated sugar, vanilla, cinnamon, and salt. Whisk until the sugar mostly dissolves and everything is smooth and pale.

Soak the bread:

Pour the custard evenly over the bread and berries, then use the back of a spoon to gently press down so the bread absorbs the liquid. You want every piece to get wet, but don't mash it into a pulp—just press gently and let gravity do most of the work.

Make the streusel:

In a medium bowl, whisk together the flour, brown sugar, and cinnamon, then add your cold butter cubes. Use a pastry cutter, fork, or your fingertips to rub the butter into the flour mixture until it looks like coarse breadcrumbs with some pea-sized butter pieces still visible.

Top and bake:

Sprinkle the streusel evenly over the casserole and slide it into the oven for 40 to 45 minutes. The custard should be set but still slightly jiggly in the center, and the top should be golden brown and smell like caramelized cinnamon.

Rest and serve:

Let it cool for at least ten minutes before you dust it with powdered sugar if you like. Serve it warm with maple syrup on the side and watch people's faces light up.

Save

Years ago, I made this for my best friend the morning after her engagement party, and she cried into her fork in the happiest way. It wasn't the most complicated thing I'd ever cooked, but it felt generous and thoughtful, which is sometimes exactly what food should be.

The Right Bread Makes All the Difference

I learned this the hard way when I once used a dense whole wheat loaf thinking it didn't matter. The result was heavy and broke apart before it could soak properly. Brioche and challah have enough structure and slight sweetness to hold up while absorbing all that vanilla custard, creating a texture that's custardy inside but with a subtle structure.

Strawberries Transform as They Bake

The first time I made this, I expected the strawberries to stay firm and bright red. Instead, they softened and released their juices, which mingled with the custard to create this gentle berry flavor that spread through every layer. It's not a problem—it's actually the magic that happens if you let it. The berries break down just enough to add flavor without disappearing.

Make It Your Own

The beauty of a baked casserole is that you can adjust it based on what you have and what you love. Spring brings strawberries, but summer raspberries work beautifully too, and blueberries add a different kind of sweetness. Some mornings I add a teaspoon of lemon zest to the custard because I'm craving brightness, and other times I dust the whole thing with cinnamon sugar instead of powdered sugar for extra crunch.

• If you want more custard richness, swap half the milk for another half cup of heavy cream.
• A splash of orange juice or zest in the custard plays beautifully with strawberries if you're feeling adventurous.
• Make this the night before, cover it loosely, and bake it straight from the fridge—just add 5 to 10 minutes to the baking time.

Save

This recipe has become my go-to for any gathering where I want to feed people something that feels like care. It's the kind of dish that makes spring brunch feel like an occasion.

Recipe Q&A

→ What bread works best for this dish?

Brioche or challah bread are ideal due to their rich texture and ability to soak up the custard without becoming soggy.

→ Can I prepare this ahead of time?

Yes, assemble it the night before and refrigerate. This allows the bread to fully absorb the custard, enhancing flavor and texture.

→ What fruit substitutions are suitable?

Raspberries or blueberries can be used instead of strawberries to provide a different berry flavor with similar texture.

→ How to achieve a golden topping?

The topping combines flour, brown sugar, cinnamon, and cold butter, which crisps up beautifully during baking for a golden, crumbly finish.

→ Is there a way to add extra zest to the custard?

Add a teaspoon of lemon zest to the custard mixture to brighten the flavors without overwhelming the dish.