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Prosciutto and Gruyère Croissant Bake

This Prosciutto and Gruyère Croissant Bake is basically a fancied up ham and cheese breakfast casserole. It's the perfect savory breakfast for the holidays! Layered with Gruyère cheese, crispy prosciutto and buttery croissants- this easy croissant bake is sure to impress.
4.25 from 8 votes
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Course: Breakfast, brunch
Cuisine: American, French
Keyword: croissant, gruyere cheese, prosciutto
Prep Time: 15 minutes
Cook Time: 50 minutes
Total Time: 1 hour 5 minutes
Servings: 6
Author: Kaylen Nicole

Ingredients

  • 12 large croissants roughly torn
  • 2 tablespoons salted butter, thinly sliced
  • 2 tablespoons olive oil
  • 2 cups Bella mushrooms, washed and thinly sliced
  • 1 large shallot, chopped
  • 4 cloves garlic, minced
  • 2 cups heavy cream
  • ¼ cup dry white wine
  • 3 large eggs, beaten
  • 4 ounces prosciutto, torn
  • 2 cups shredded Gruyère cheese
  • 1 teaspoon dried thyme
  • salt and pepper, to taste

Instructions

  • Preheat the oven to 350 degrees F. Butter a 9 x 13-inch Deep baking dish.
  • Arrange the torn croissants in the baking dish and scatter the 2 tablespoons of thinly sliced butter over the croissants. Transfer to the oven and bake 5-8 minutes, until the croissants are lightly toasted.
  • Heat the olive oil in a large skillet over medium high heat. When the oil is hot, add the mushrooms and shallots. Season with salt and pepper. Saute until golden brown, about 5 minutes. Add the garlic and thyme, cook an additional 1 minute. Remove from the heat and set aside to cool.
  • In a large bowl whisk together the heavy cream, eggs, white wine and a pinch of salt and pepper. Add the mushroom mixture to the cream and stir to combine. Pour the cream mixture over the toasted croissants in the casserole dish, and gently stir to combine. Arrange the torn prosciutto over the top. Top with the shredded gruyere cheese.
  • Cover the dish with foil and bake for 30 minutes. Remove the foil, then continue baking for another 10 minutes or until the croissants are golden on top and the cheese is bubbly. Serve!