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Overnight French Toast Casserole

Overnight French Toast Casserole

A rich, custardy French toast casserole that comes together the night before and slow-cooks to golden, pudding-like perfection. Chunks of brioche soak in a spiced egg-and-cream mixture overnight, then the slow cooker does all the morning work — no oven required. Perfect for holiday brunches, lazy weekends, or feeding a crowd with zero morning stress.

6 servings · Prep 20 min · Cook 180 min · Total 200 min

American · French · Main Course · Brunch · Breakfast

Ingredients

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  • 1 lb brioche bread cut into 1-inch cubes, day-old preferred
  • 6 large eggs
  • 1.5 cup whole milk
  • 0.5 cup heavy cream
  • 0.33 cup brown sugar packed
  • 2 tsp pure vanilla extract
  • 1.5 tsp ground cinnamon
  • 0.25 tsp ground nutmeg
  • 0.25 tsp fine sea salt
  • 2 tbsp unsalted butter cut into small pieces, for dotting the top
  • maple syrup for serving
  • powdered sugar for dusting

Equipment

  • Stovetop
  • Slow Cooker
  • Mixing Bowl
  • Cooking Spray
  • Pie Dish
  • Lid
  • Measuring Cups
  • Fridge
  • Whisk
  • Plates
  • Knife
  • Measuring Spoons
  • Cutting Board
  • Mixing Bowl (4 Quarts)

Instructions

  1. The night before: Grease the insert of a 6-quart #[Slow Cooker] with @[Butter] or #[Cooking Spray]. Cut the @[Brioche Bread] into 1-inch cubes and spread them evenly in the slow cooker insert.
  2. In a large #[Mixing Bowl], whisk together the @[Eggs], @[Milk], @[Heavy Cream], @[Brown Sugar], @[Vanilla Extract], @[Cinnamon], @[Nutmeg], and @[Fine Sea Salt] until smooth and fully combined. Pour the custard mixture evenly over the bread cubes, pressing gently so every piece is soaked. Dot the top with small pieces of @[Butter]. Cover and refrigerate overnight, or for at least ~[6 hours].
  3. In the morning, remove the slow cooker insert from the fridge and let it sit at room temperature for ~[15 minutes]. Place the insert into the #[Slow Cooker] base, cover with the lid, and cook on ^[LOW] for ~[3 to 3.5 hours], until the custard is set in the center and the edges are slightly golden. Avoid lifting the lid during cooking.
  4. Once cooked, turn off the slow cooker and let the casserole rest uncovered for ~[10 minutes] — this helps it firm up slightly for easier serving. Scoop into bowls or onto plates, dust with @[Powdered Sugar], and serve warm with @[Maple Syrup] on the side.