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Easy Overnight Eggnog French Toast Casserole Recipe with Brown Sugar Crust

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A cozy and festive French toast casserole soaked in eggnog with a crunchy brown sugar crust, perfect for holiday mornings or weekend brunches.

Ingredients

Scale
  • 1 loaf day-old bread (about 12 ounces / 340 grams), preferably brioche or challah
  • 3 cups (720 ml) eggnog
  • 6 large eggs, room temperature
  • 3/4 cup (150 grams) packed brown sugar
  • 1/3 cup (65 grams) granulated sugar
  • 2 teaspoons ground cinnamon
  • 1/2 teaspoon ground nutmeg (freshly grated if possible)
  • 2 teaspoons vanilla extract
  • 1/4 teaspoon salt
  • 4 tablespoons (60 grams) unsalted butter, melted

Instructions

  1. Cut day-old brioche or challah loaf into roughly 1-inch cubes and place evenly in a greased 9×13-inch baking dish.
  2. In a large mixing bowl, whisk together 6 large eggs, 3 cups eggnog, 1/3 cup granulated sugar, 2 teaspoons ground cinnamon, 1/2 teaspoon nutmeg, 2 teaspoons vanilla extract, and 1/4 teaspoon salt until smooth and slightly frothy.
  3. Pour the custard evenly over the bread cubes, pressing down gently to ensure all pieces are soaked but not swimming in liquid.
  4. Cover the dish tightly with aluminum foil or plastic wrap and refrigerate for at least 6 hours, ideally overnight.
  5. Just before baking, mix 3/4 cup packed brown sugar with 4 tablespoons melted unsalted butter in a small bowl until crumbly and sticky.
  6. Sprinkle the brown sugar and butter mixture evenly over the soaked bread.
  7. Bake uncovered at 350°F (175°C) for 45-50 minutes until the top is golden brown and crisp and the custard is set but still soft in the center.
  8. Let the casserole rest for 5-10 minutes before slicing and serving.

Notes

Use day-old brioche or challah for best texture. If top browns too quickly, tent with foil halfway through baking. Eggs should be room temperature to avoid rubbery custard. Leftovers can be refrigerated up to 3 days and reheated gently in the oven at 300°F for 10-15 minutes. For gluten-free, use gluten-free bread; for dairy-free, use almond or coconut milk-based eggnog.

Nutrition

Keywords: eggnog, french toast casserole, overnight casserole, holiday breakfast, brown sugar crust, festive brunch, easy breakfast

Find it online: https://blingbite.com/easy-overnight-eggnog-french-toast-casserole-recipe-with-brown-sugar-crust/