Spring Brunch Strawberry French Toast

My sister texted me at 8 AM on Easter Sunday asking if I could bring something to brunch, and I had exactly two hours to figure it out. I stood in my kitchen staring at a loaf of brioche I'd picked up the day before, then spotted the strawberries on my counter still wearing morning dew. Something clicked—why not turn breakfast into something you could actually sit down and eat without scrambling over a hot griddle? That's when this baked French toast casserole was born, and now it's the only thing anyone asks me to bring to spring gatherings.

The first time I brought this to a potluck, I watched a friend who claims she doesn't eat breakfast take a second helping, then a third, and suddenly she was asking for the recipe before she'd even finished chewing. That moment—when food does something unexpected to people you care about—that's when I knew this wasn't just a recipe, it was something worth perfecting.

Ingredients

• Brioche or challah bread: About 450 g, cut into 1-inch cubes—the richness of this bread soaks up the custard without falling apart, though a sturdy croissant-style loaf works too if that's what you have.
• Large eggs: 6 of them, the base of your custard that turns ordinary bread into something creamy and luxurious.
• Whole milk: 480 ml (2 cups), use the full-fat version because it makes a difference in how silky everything becomes.
• Heavy cream: 120 ml (1/2 cup), this is what elevates it from good to the kind of thing people remember.
• Granulated sugar: 100 g (1/2 cup), sweetness that balances the eggs without making it cloying.
• Pure vanilla extract: 2 teaspoons, real vanilla only—the imitation stuff just disappears into the background.
• Ground cinnamon: 1/4 teaspoon in the custard and another 1/2 teaspoon for the topping, warm spice that feels like spring mornings.
• Salt: 1/4 teaspoon, a tiny amount that makes every other flavor sharper and more interesting.
• Fresh strawberries: 350 g (2 cups) hulled and sliced, pick ones that smell fragrant because that's where all the flavor lives.
• All-purpose flour: 60 g (1/2 cup) for the topping, which creates a subtle crunch on top.
• Brown sugar: 50 g (1/4 cup), mellower and more complex than white sugar.
• Cold unsalted butter: 55 g (1/4 cup) cubed, the secret to getting those perfect crumbs on the topping—keep it cold or you'll get a paste instead.
• Powdered sugar: For dusting at the end, optional but it looks beautiful and tastes like a bakery made it.
• Maple syrup: For serving, because this dish deserves the real stuff.

Instructions

Get your oven ready and butter that dish:

Preheat to 175°C (350°F) and grease a 23x33 cm baking dish generously—this prevents sticking and adds flavor. I use butter instead of spray because it browns beautifully along the edges.

Layer your bread and berries:

Spread the bread cubes in an even layer, then scatter the sliced strawberries over top, tucking some between the bread pieces so they don't all sink to the bottom. This distribution means every bite has fruit.

Make the custard that holds everything together:

Whisk eggs, milk, cream, sugar, vanilla, cinnamon, and salt in a large bowl until completely smooth—no streaks of egg white visible. Pour it slowly and evenly over the bread, then press down gently with the back of a spoon so every cube gets saturated.

Build the crumb topping:

Mix flour, brown sugar, and cinnamon, then add cold butter cubes and work everything together with your fingertips until it looks like coarse breadcrumbs—this takes about three minutes and is worth doing by hand because you get a better texture. Sprinkle it evenly across the top.

Bake until golden and set:

Slide it into the oven for 40 to 45 minutes, watching for the top to turn golden and the custard to look just-set when you jiggle the pan slightly. The center should wiggle just a little, not slosh.

Cool, dust, and serve:

Let it sit for 10 minutes so the custard firms up enough to slice cleanly, then dust with powdered sugar if you're feeling fancy. Serve warm with maple syrup on the side.

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One spring morning, my neighbor knocked on my door asking if something was burning because the smell was drifting over the fence—when I invited her in, she ended up staying for the whole brunch. That's when I realized this casserole isn't really about the recipe, it's about that moment when your kitchen smells so good that people forget to be polite and just ask to join in.

Making It Your Own

Once you've made this a couple of times, you'll start seeing it as a canvas instead of a rigid formula. Add lemon zest to the custard if you want brightness, or replace half the strawberries with raspberries for a different flavor profile. I've even made it with peaches at the height of summer and it was completely different but equally good.

The Night-Before Advantage

This is one of those recipes that actually prefers to sit overnight—the bread has time to fully absorb the custard so every bite is creamy and cohesive instead of having dry pockets. You can assemble everything after dinner, cover it with foil, and refrigerate it, then just pop it in the oven in the morning while you're still in your pajamas.

Serving and Storage Wisdom

Serve this warm straight from the oven, but it's also excellent at room temperature if you have leftovers, which honestly is rare. If you're bringing it somewhere, bake it at home and transport it in the baking dish wrapped in foil, then reheat gently in a 150°C oven for about 10 minutes before serving.

• Leftover pieces reheat beautifully in the microwave for 30 seconds per piece—much better than you'd expect.
• This keeps in the fridge for up to three days covered, though it's never lasted that long in my house.
• You can freeze individual portions in containers and pull them out on mornings when you want something special without the effort.

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This recipe taught me that sometimes the best dishes are the ones that let you spend time with people instead of stuck in the kitchen. Make this, watch it bake, and then sit down to eat it warm with people you like.

Recipe FAQs

→ What type of bread works best?

Brioche or challah provide a soft, slightly sweet base that soaks custard well without getting soggy.

→ Can I substitute the strawberries?

Yes, raspberries or blueberries can be used for a different fruit flavor while maintaining freshness.

→ How do I prepare ahead of time?

Assemble the layers the night before, cover, and refrigerate. Bake in the morning as directed for convenience.

→ What temperature should I bake at?

Bake at 175°C (350°F) for 40 to 45 minutes until set and golden on top.

→ What can I serve alongside?

Maple syrup is ideal for pouring over this dish, and a light dusting of powdered sugar adds a finishing touch.