Brussels Sprouts au Gratin

Brussels Sprouts au Gratin

a delightful side dish

Recipe by
Reviewed by Arturs Arnicans
Prep Time: 25m
Cook Time: 30m
Total Time: 55m
Servings: 8
Difficulty: Easy
5.0 (10 Reviews)
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Ingredients

Adjust servings:

Nutritional Information

325
Calories
20.8g
Fat
21.5g
Carbohydrate
17.6g
Protein
65mg
Cholesterol
269mg
Sodium
Brussels Sprouts au Gratin

Recipe Description

Looking for a delightful side to your holiday meal? This Brussels Sprouts au Gratin has been a holiday staple in my family ever since a friend shared her recipe with me. Made with pure indulgence of Gruyère cheese, butter, and cream, these Brussels sprouts are truly mouthwateringly delicious.

You’ll start by parboiling the Brussels sprouts until crisp-tender, about 5 minutes. Then, using a large saucepan, cook the chopped garlic cloves in a few tablespoons of butter until fragrant. Add in the flour and cook, whisking constantly for a minute, creating a blond roux. Still whisking, slowly pour in the half-and-half and cook until thickened. I use half-and-half instead of heavy cream to cut down on the fat because there’s already plenty of that in the cheese. Next, remove the saucepan from heat and stir in the cheese, then fold in the Brussels sprouts. Pour the mixture into a baking dish and bake until golden and bubbly. Let cool for 5 minutes before serving.

To make the Brussels Sprouts au Gratin, you will need the following ingredients:

Ingredients for Brussels Sprouts au Gratin

Recipe Features

Steps to make

  1. 1

    Heat oven and prepare baking dish

    Step 1 - Brussels Sprouts au Gratin

    Preheat the oven to 375 °F. Lightly grease a 3-quart baking dish.

  2. 2

    Parboil Brussels sprouts

    10 min
    Step 2 - Brussels Sprouts au Gratin

    Bring a large pot of salted water to a boil and add 3 pounds Brussels sprouts. Boil until crisp-tender, 5-8 minutes. Drain and run under cold water.

  3. 3

    Pat dry

    2 min
    Step 3 - Brussels Sprouts au Gratin

    Drain the Brussels sprouts and spread in a single layer on a paper towel; pat dry.

  4. 4

    Make roux

    3 min
    Step 4 - Brussels Sprouts au GratinStep 4 - Brussels Sprouts au Gratin

    In a large saucepan over medium heat, cook 3 chopped garlic cloves in 2 tablespoons butter until fragrant, 1 minute. Sprinkle with ¼ cup flour and cook, whisking, for 1 minute.

  5. 5

    Add half-and-half

    7 min
    Step 5 - Brussels Sprouts au Gratin

    Slowly whisk in 2 cups half-and-half. Simmer, whisking, until thickened, 6-7 minutes.

  6. 6

    Add cheese

    1 min
    Step 6 - Brussels Sprouts au Gratin

    Remove the saucepan from heat and whisk in 6 ounces (about 1 ¼ cups) grated Gruyère cheese.

  7. 7

    Add Brussels sprouts

    1 min
    Step 7 - Brussels Sprouts au Gratin

    Fold in the Brussels sprouts and season with salt and freshly ground black pepper to taste.

  8. 8

    Assemble gratin

    1 min
    Step 8 - Brussels Sprouts au Gratin

    Transfer to the prepared baking dish and top with the remaining Gruyère cheese (about ¾ cup).

  9. 9

    Bake

    30 min
    Step 9 - Brussels Sprouts au Gratin

    Bake until bubbly and golden brown on top, 25 to 30 minutes.

  10. 10

    Serve

    Step 10 - Brussels Sprouts au Gratin

    Leave to stand for about 5 minutes before serving. Enjoy!

This Brussels Sprouts au Gratin is a delicious side dish to try this Thanksgiving or Christmas, thanks to its mouthwatering cheesy flavor. Made it? We would love to hear from you. Please share a photo with us @cookmerecipes on Instagram, and don’t forget to leave a comment.

About the author

Lilly Mathuse

Lilly is an enthusiastic and cheerful young mom. She knows as well as any parent that children can be really picky when it comes to food. And she’s had plenty of experience trying to cook meals that are both tasty and nutritious, and able to satisfy the tastes of a fussy kid right away! To save you some precious time, Lilly's going to share with you all the tricks she learned the hard way, so you don’t have to! She has a wealth of recipes for quick and easy meals for kids and families on a budget.

Recipe Reviews

Have you made this recipe? Share your experience and help other cooks!

★★★★★
★★★★★
5.0 out of 5 (10 reviews)
Quentin Smith
March 24, 2025
Verified

Absolutely delicious dish!

Quinn Johnson
September 7, 2024
Verified

Yum! Made this for dinner with the hubs, and he couldn’t stop raving! So cheesy and delish!

Emily
July 22, 2024
Verified

Delicious side dish!

Daria Rossi
May 14, 2024
Verified

Simply mouth watering!

Daisy
April 16, 2024
Verified

OMG, this Brussels Sprouts au Gratin is just too good! I made it for the fam's holiday dinner and it was a hit! The creamy cheese and crispy sprouts combo had everyone goin' back for seconds. Way simpler than I thought too! Definitely a keeper for future feasts!

Xena
April 8, 2024
Verified

I made this Brussels Sprouts au Gratin for Thanksgiving. Wow, it was a hit! My family loved the creamy cheese and crispy tops. I usually don’t like Brussels sprouts, but this recipe changed my mind. It was so easy to make and added a special touch to the dinner table. Will definitely make again!

Olivia
January 8, 2024
Verified

I made this Brussels Sprouts au Gratin for our family gathering, and everyone loved it! The creamy cheese sauce was a hit, and it felt special to share this tradition. So simple yet so tasty.

Kathy
January 5, 2024
Verified

Delicious! My grandkids devoured this at Christmas dinner, and now it’s a must-have every year. So grateful for this recipe!

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