overnight blueberry French toast

 Transform your morning with this decadent, make-ahead breakfast casserole. Custardy, cinnamon-scented French toast is studded with juicy blueberries and finished with a delicate dusting of powdered sugar. Perfect for leisurely weekends, holiday brunches, or anytime you want an effortless yet spectacular start to the day.

Serves: 8-10
Prep Time: 20 minutes
Chill Time: Overnight (at least 8 hours)
Bake Time: 45-50 minutes
Total Time: 9+ hours (mostly hands-off)

Ingredients

• 1 (14-16 oz) loaf French or Italian bread, cut into 1-inch cubes (about 10-12 cups)

• 6 large eggs

• 2 cups (480ml) whole milk

• ½ cup (120ml) heavy cream

• ¾ cup (150g) granulated sugar

• 1 tbsp pure vanilla extract

• 1 tsp ground cinnamon

• Zest of 1 lemon

• 2 cups (about 10 oz / 280g) fresh or frozen blueberries (do not thaw if frozen)

• Unsalted butter, for greasing

• Powdered sugar, for dusting (optional)

Instructions

1. Assemble the Bake

Generously grease a 9x13-inch baking dish with butter. Spread the bread cubes evenly in the dish.

2. Make the Custard

In a large bowl, vigorously whisk together the eggs, milk, heavy cream, granulated sugar, vanilla extract, cinnamon, and lemon zest until the mixture is completely smooth and the sugar is dissolved.

3. Soak Overnight

Pour the custard evenly over the bread cubes. Using a spatula, gently press down on the bread to ensure all pieces are submerged. Sprinkle the blueberries evenly over the top. Cover the dish tightly with plastic wrap and refrigerate for at least 8 hours, or overnight.

4. Bake

Preheat your oven to 350°F (175°C). Remove the baking dish from the refrigerator and take off the plastic wrap. Let it sit at room temperature while the oven preheats (about 15-20 minutes).
Bake on the center rack for 45-50 minutes, or until the top is puffed and golden brown, and the center is set (it shouldn't jiggle when gently shaken).

5. Serve

Let the bake cool for 10-15 minutes before serving. It will deflate slightly as it cools. Dust generously with powdered sugar, if desired. Slice and serve warm.

Chef's Notes & Tips

• Bread Choice: Stale, day-old bread works best as it soaks up the custard without falling apart. A hearty French or Italian loaf is ideal.

• Make-Ahead: This recipe is designed to be prepared the night before, making it the ultimate stress-free brunch dish.

• Frozen Berries: No need to thaw frozen blueberries before adding them. This prevents the batter from turning purple.

• Variations: Add 8 oz of softened cream cheese, cubed, with the bread for a creamy twist. Substitute blueberries with raspberries, blackberries, or a mix of your favorite berries.

• Serving: Delicious on its own, or serve with pure maple syrup, extra fresh berries, or a dollop of whipped cream.

Enjoy this luxurious, crowd-pleasing breakfast straight from the oven.