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Bacon Brussels Sprout Gratin

An easy and super flavorful gratin with bacon, brussels sprouts, and Gruyere cheese!
Prep Time20 mins
Cook Time25 mins
Total Time45 mins
Course: Main Course, Side Dish
Cuisine: American
Keyword: bacon brussels sprout gratin, bacon gratin recipe, gratin recipe
Servings: 8
Calories: 436.9kcal


  • 6 slices bacon, preferably thick cut
  • 30 ounces (~8 cups) brussels sprouts, roughly chopped/shredded*
  • 2 cloves garlic, minced
  • 1/2 tsp salt
  • 1 1/2 cups Gruyere cheese, shredded
  • 1 1/2 cups heavy cream
  • 3/4 cup bread crumbs
  • 2 tbsp butter, melted


  • Preheat the oven to 400 degrees F.
  • In a large skillet, cook the bacon over medium-high heat until crispy.
  • Remove the bacon from the pan, leaving the grease.
  • Add the brussels sprouts and cook until slightly softened, about 5 minutes.
  • Add the garlic and salt and cook another minute.
  • Chop the cooked bacon and toss it with the brussels sprouts, along with 1 cup of Gruyere cheese.
  • Transfer the mixture to a greased 9x13” baking dish.
  • Drizzle with the heavy cream and then top with remaining cheese.
  • In a small bowl, stir together the melted butter and breadcrumbs.
  • Sprinkle the breadcrumbs over the gratin.
  • Note: at this point, you can cover with plastic wrap and refrigerate until ready to bake, up to one day in advance. 
  • Bake the gratin in the preheated oven for 20-25 minutes, until the breadcrumbs are golden brown.  If you are baking this after being in the refrigerator, expect to add about 5-10 minutes to the baking time. 


*I quartered half of the brussels sprouts and shredded the other half


Calories: 436.9kcal | Carbohydrates: 18.6g | Protein: 15.4g | Fat: 34.76g | Saturated Fat: 19.14g | Cholesterol: 106.78mg | Sodium: 480.5mg | Potassium: 519.58mg | Fiber: 4.5g | Sugar: 3.11g | Vitamin A: 1779.66IU | Vitamin C: 90.86mg | Calcium: 343.77mg | Iron: 2.09mg