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Easy Make-Ahead Sourdough French Toast Casserole Recipe for Perfect Breakfast

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An easy make-ahead sourdough French toast casserole that combines the tangy flavor of sourdough with a cinnamon-vanilla custard soak, perfect for a comforting and stress-free breakfast or brunch.

Ingredients

Scale
  • 1 pound sourdough bread, cut into 1-inch cubes (preferably day or two old)
  • 8 large eggs, room temperature
  • 2 cups whole milk or half-and-half
  • 1/4 cup pure maple syrup
  • 2 teaspoons vanilla extract
  • 1 1/2 teaspoons ground cinnamon
  • Pinch of salt
  • Butter for greasing the baking dish (unsalted preferred)
  • Optional toppings: fresh berries, chopped nuts, powdered sugar, extra maple syrup

Instructions

  1. Cube the sourdough bread into roughly 1-inch cubes and arrange evenly in a greased 9×13-inch baking dish.
  2. In a medium bowl, whisk together eggs, milk (or half-and-half), maple syrup, vanilla extract, cinnamon, and salt until fully combined and slightly frothy.
  3. Pour the custard mixture evenly over the bread cubes, pressing gently to help the bread soak up the custard.
  4. Cover the dish tightly with plastic wrap or aluminum foil and refrigerate for at least 8 hours or overnight.
  5. Preheat oven to 350°F (175°C). Remove cover, optionally dot the top with butter or sprinkle cinnamon sugar.
  6. Bake uncovered for 45-55 minutes until the top is golden brown and custard is set (knife inserted should come out clean).
  7. Let cool for 5-10 minutes before slicing and serving with desired toppings.

Notes

Use stale bread for best custard absorption. Soak overnight for optimal texture. Tent with foil if edges brown too quickly. Can be made dairy-free by substituting milk and butter with plant-based alternatives. Can freeze before baking and bake after thawing with slightly longer bake time.

Nutrition

Keywords: sourdough, French toast casserole, make-ahead breakfast, easy brunch, cinnamon, vanilla, custard, maple syrup