Lemon Blueberry Sourdough Toast (Printable Version)

Sourdough bread with juicy blueberries and lemon custard, baked to golden perfection for a bright brunch.

# What You Need:

→ Bread & Fruit

01 - 1 loaf sourdough bread, cut into 1-inch cubes (approximately 14 ounces)
02 - 1½ cups fresh or frozen blueberries
03 - Zest of 1 lemon

→ Custard

04 - 6 large eggs
05 - 2 cups whole milk
06 - ½ cup heavy cream
07 - ⅓ cup granulated sugar
08 - 2 teaspoons pure vanilla extract
09 - ¼ teaspoon salt
10 - Juice of 1 lemon

→ Topping

11 - 2 tablespoons unsalted butter, melted
12 - 2 tablespoons granulated sugar
13 - ½ teaspoon ground cinnamon

# How To Make:

01 - Grease a 9x13-inch baking dish with butter or cooking spray. Arrange sourdough cubes evenly in the prepared dish. Scatter blueberries and lemon zest over the bread layer.
02 - In a large mixing bowl, whisk together eggs, whole milk, heavy cream, granulated sugar, vanilla extract, salt, and lemon juice until fully combined and smooth.
03 - Pour the custard mixture evenly over the bread and berries. Press down lightly with the back of a spoon to ensure all bread pieces absorb the liquid thoroughly.
04 - Cover the baking dish with plastic wrap and refrigerate for at least 30 minutes. Overnight refrigeration yields optimal results and enhanced flavor development.
05 - Remove casserole from refrigerator. Preheat oven to 350°F.
06 - Drizzle melted butter evenly over the surface. In a small bowl, combine granulated sugar and ground cinnamon. Sprinkle the mixture uniformly across the top.
07 - Bake uncovered for 45 minutes, or until the center is set and the top is golden brown. The custard should be just firm when lightly touched.
08 - Allow the casserole to cool for 10 minutes before serving. Serve warm with optional accompaniments such as maple syrup or powdered sugar.

# Expert Tips:

01 -
  • Make-ahead friendly: Assemble the night before and bake fresh in the morning
  • Crowd-pleaser: Serves 6 generous portions, perfect for family gatherings
  • Bright and balanced: The lemon cuts through the richness while blueberries add natural sweetness
  • Easy technique: No need to dip individual slices—just pour and bake
  • Customizable: Easily adapt to dietary needs or flavor preferences
02 -
  • Use a 9x13-inch baking dish, large mixing bowl, whisk, measuring cups and spoons, and a knife with cutting board
  • Day-old sourdough absorbs custard better than fresh bread
  • Refrigerate overnight for maximum flavor absorption and easier morning prep
  • Don't skip the resting time after baking—it allows the custard to set properly
  • Contains eggs, milk, and wheat (gluten); may contain traces of nuts or soy depending on bread used
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