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Overnight French Toast Casserole

A close-up of a square slice of baked overnight french toast, topped with a shiny, caramelized glaze.

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Prepare this baked French toast casserole the night before for a simple, custardy breakfast or brunch the next morning.

Ingredients

Scale
  • 1 loaf (1 pound) day-old bread, cut into 1-inch cubes
  • 6 large eggs
  • 2 cups milk
  • 1/2 cup granulated sugar
  • 1 teaspoon vanilla extract
  • 1 teaspoon ground cinnamon
  • 1/4 teaspoon ground nutmeg
  • 1/4 cup butter, melted
  • 1/4 cup brown sugar, packed

Instructions

  1. Grease a 9×13 inch baking dish. Arrange the bread cubes evenly in the prepared dish.
  2. In a large bowl, whisk together the eggs, milk, granulated sugar, vanilla extract, cinnamon, and nutmeg until well combined.
  3. Pour the egg mixture evenly over the bread cubes. Gently press the bread down to soak up the liquid.
  4. Cover the dish tightly with plastic wrap and refrigerate for at least 8 hours, or preferably overnight.
  5. When ready to bake, preheat your oven to 350 degrees Fahrenheit (175 degrees Celsius). Remove the plastic wrap.
  6. In a small bowl, mix the melted butter and brown sugar until crumbly. Sprinkle this mixture evenly over the top of the soaked bread.
  7. Bake for 45 to 55 minutes, or until the casserole is puffed, golden brown, and the center is set.
  8. Let the casserole rest for 10 minutes before slicing and serving.

Notes

  • Use slightly stale or day-old bread like challah, brioche, or French bread for the best texture.
  • If you prefer a thinner topping, you can skip the butter/brown sugar mixture and simply dust the top with powdered sugar after baking.
  • This casserole reheats well in the microwave or oven the next day.

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