Galentines Brunch Strawberry French Toast

My friend texted me in a panic at midnight: she was hosting Valentine's brunch and had zero time to cook that morning. I threw together this casserole while half-watching a cooking show, and honestly, it became the star of the table. The beauty of it is you do almost everything the night before, then just pop it in the oven while everyone's still in their pajamas sipping coffee. One bite and I understood why she's asked me to make it every year since.

I'll never forget watching my partner's mom take her first bite at brunch last February, her fork cutting through that golden topping and into the custardy bread beneath. She closed her eyes for a second, then looked up and asked if I'd gone to culinary school. When I told her it was just brioche and eggs and butter, she laughed and said that's exactly what makes it magical—simplicity done right, and somehow that stuck with me more than any compliment about technique.

Ingredients

• 1 large loaf brioche or challah, cut into 2.5 cm cubes (about 500 g): Brioche's buttery richness soaks up the custard beautifully without falling apart; if you can only find day-old bread, that's actually perfect because it won't turn to mush.
• 2 cups fresh strawberries, hulled and sliced (300 g): Fresh berries bleed their color and tartness into the custard, creating that gorgeous pink hue and subtle flavor throughout.
• 6 large eggs: These bind everything together and create that silky, custardy texture that makes this feel indulgent.
• 2 cups whole milk (480 ml): Don't skip the whole milk; it gives richness without being overwhelming.
• 1 cup heavy cream (240 ml): This is what separates a good custard from one that tastes like scrambled eggs, so don't substitute with milk.
• 1/2 cup granulated sugar (100 g): Sweetens the custard just enough without making it cloying.
• 2 tsp pure vanilla extract: Real vanilla makes a noticeable difference here; cheap imitation tastes slightly off.
• 1/2 tsp ground cinnamon: Adds warmth and complexity without you tasting cinnamon specifically.
• 1/4 tsp salt: A tiny pinch makes every other flavor pop.
• 1/3 cup brown sugar (70 g): Brown sugar's molasses depth makes the topping taste like caramel.
• 1/3 cup all-purpose flour (40 g): Keeps the topping from being too wet and crumbly.
• 1/2 tsp ground cinnamon (for topping): A second hit of cinnamon, this time on top where you taste it directly.
• 1/4 cup unsalted butter, cold and diced (55 g): Cold butter is crucial; warm butter won't create those beautiful crispy crumbs.
• 1/4 cup sliced almonds, optional (30 g): Almonds add a subtle nuttiness and textural contrast if you want that extra layer.

Instructions

Prepare your baking dish:

Grease a 9x13-inch baking dish generously with butter or nonstick spray so nothing sticks to the sides and bottom. This small step saves you heartbreak later.

Layer the bread and berries:

Spread half the bread cubes across the bottom, then scatter half the strawberries over them. Repeat with remaining bread and berries, creating two distinct layers that'll distribute flavor evenly throughout.

Make the custard:

Whisk together the eggs, milk, cream, sugar, vanilla, cinnamon, and salt in a large bowl until completely combined and smooth. Pour this mixture slowly and evenly over the bread and strawberries, then press down gently with the back of a spoon so the bread absorbs the custard without breaking into pieces.

Mix the topping:

Combine brown sugar, flour, and cinnamon in a small bowl, then cut in the cold diced butter using a pastry cutter or your fingertips until it looks like coarse breadcrumbs. Stir in almonds if you're using them, then sprinkle this mixture evenly across the top of the casserole.

Chill overnight or at least 2 hours:

Cover the dish tightly with foil and refrigerate; this resting time lets the bread fully absorb the custard and flavors meld together. I always prepare mine the night before for best results, but two hours works if you're short on time.

Bake covered:

Preheat your oven to 350°F (175°C) and remove the casserole from the refrigerator while it heats. Bake covered with foil for 30 minutes so the custard sets gently without the topping browning too fast.

Finish baking uncovered:

Remove the foil and bake for another 15 minutes until the topping turns golden brown and the custard is set but still slightly jiggly in the very center. The jiggle means it'll keep cooking a tiny bit as it cools, so don't overbake.

Rest and serve:

Let the casserole cool for 10 minutes, dust generously with powdered sugar, and serve warm with maple syrup and extra fresh strawberries. The cooling time makes cutting and serving easier, and the warmth of the casserole will gently warm the berries on top.

Save

One brunch, my neighbor took a photo of her plate before eating and posted it online with some gushy caption about self-care and treating yourself right. Later she told me that casserole sparked a whole conversation at her table about making time for nice moments, even on ordinary Sundays, and I realized this dish had become less about feeding people and more about creating space for them to slow down and actually taste something good.

Why This Works as a Make-Ahead Dish

The magic of casseroles is that they sit in your fridge overnight becoming more flavorful, not less. The bread continues to absorb the custard gently and evenly, the cinnamon seeps into every layer, and the strawberries release their juice slowly rather than all at once. By morning, everything has married together into something cohesive and tender. You're essentially building flavor while you sleep, which means all you're doing the day-of is baking and serving.

Substitutions That Actually Work

If brioche feels fancy or unavailable, challah is practically identical, and day-old French bread works too though it'll be slightly less rich. For a tangier twist, cream cheese cubes scattered throughout add this sophisticated tang that pairs beautifully with strawberries. Dairy-free? Plant-based milk and vegan butter will mimic the original almost exactly, and oat milk has the richest mouthfeel if you're choosing. The core technique doesn't change; you're still soaking bread in a sweet eggy custard and topping it with crispy crumbs, so the substitutions slot in seamlessly.

• Croissant pieces add buttery texture contrast but dry out faster, so watch them closely.
• Raspberries or blackberries work instead of strawberries and create a deeper purple tone.
• Almond extract mixed with vanilla creates almost a cherry-almond flavor if that appeals to you.

Storage and Leftovers

Covered and refrigerated, this casserole keeps for 2-3 days, and honestly, cold leftovers hit different on a random Tuesday when you're craving something sweet and comforting. You can reheat individual portions in the microwave for 30-45 seconds or pop the whole thing back in a low oven at 300°F until warm through. Some people freeze it unbaked for up to a month, though I've never had it last that long because there's always someone asking me to make it again.

• Cold casserole tastes almost custard-like, closer to bread pudding texture, which some people prefer over warm.
• Reheat gently to avoid rubbery custard; low and slow beats fast and hot.
• Make-ahead works because the flavors only deepen, never fade or separate.

Save

This casserole became a tradition for a reason: it tastes like someone spent hours in the kitchen, but you spent twenty minutes prepping and the refrigerator and oven did the rest. There's something deeply satisfying about that.

Recipe Q&A Section

→ Can I prepare this dish the night before?

Yes, the casserole can be assembled and refrigerated overnight to allow flavors to meld and improve texture before baking.

→ What bread works best for this casserole?

Brioche or challah are ideal for their soft texture and slight sweetness, but French bread or croissants can be good substitutes.

→ How do I make a dairy-free version?

Use plant-based milk and butter alternatives to replace the dairy components while keeping the custard creamy and the topping crisp.

→ Are almonds necessary for the topping?

Almonds add a pleasant crunch and flavor, but they can be omitted if preferred or for allergy reasons.

→ What is the best way to serve this dish?

Serve warm, dusted with powdered sugar and accompanied by maple syrup and extra fresh strawberries for added brightness.