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Brussel Sprout and Caramelized Leek Gratin

  • Author: Elizabeth Van Lierde
  • Prep Time: 15
  • Cook Time: 35
  • Total Time: 1hr
  • Yield: 6 1x
  • Category: Sides
  • Method: Bake



for the Brussels

2 Lbs of Brussel Sprouts halved

2 Tablespoons of unsalted butter

2 Leeks, thinly sliced

1 Large shallot, finely diced

1 Cup of smoked gouda, shredded

3/4 Cup of parmesan, shredded

1 1/2 Cups of heavy whipping cream

2 Teaspoons of fresh rosemary, minced

1/2 Teaspoon of black pepper

1 Teaspoon of kosher salt

for the topping

1 1/2 Cups of Italian Breadcrumbs

3 Tablespoons of unsalted butter, melted

1/2 Teaspoon of black pepper

1/2 Teaspoon of kosher salt


  1. Preheat oven to 375 degrees Fahrenheit
    Bring a large pot of water to a rolling boil. Add halved Brussel sprouts to water and cook for 5-7 minutes until just tender. Transfer Brussels sprouts to a large bowl of ice water to stop cooking. In a medium saute pan melt 2 tablespoons of butter over medium heat and sautee leeks and shallots for about 5 minutes or until tender. In a large bowl combine heavy cream, cheeses, rosemary and salt & pepper. Drain Brussel sprouts and pat dry with a paper towel. Add Brussel sprouts and leek/shallot mixture to cheese mixture. 
  2. In a medium bowl add breadcrumbs, melted butter, and salt & pepper. Grease a casserole dish or 10-inch cast iron skillet. Add brussel sprout mixture to pan/casserole dish evenly and sprinkle breadcrumbs mixture on top. Bake for 30-35 minutes or until mixture is bubbly and the breadcrumbs are golden brown.