Brussel Sprouts Gratin

Brussel Sprouts Gratin is a delicious and easy vegetable side dish, made with Brussels sprouts, cream, shallots, garlic and gruyere. Vegetables never tasted so good. 

When it comes to vegetables that get a rap Brussel Sprouts are certainly at the top of the list for most people. That changes today because I am here to change even the big the biggest Brussels Sprouts hater into a Brussels Sprouts lover with this Brussel Sprouts au Gratin recipe.

This easy, decadent side dish is a great way to prepare Brussels Sprouts. It’ll be a vegetable that the whole family will love.

What is a gratin?

Basically a gratin is a dish, usually a vegetable of some kind, that is topped with a browned crust. The crust is usually made of bread crumbs and/or cheese. You’ve probably heard for potatoes au gratin. This is a twist, made with brussels. And it is absolutely divine.

What ingredients do you need to make Brussel Sprouts Gratin:

BRUSSELS SPROUTS: Cut in half. If the brussles sprouts are on the larger side, you can cut them in quarters. No need to do any other trimming!

OIL

SALT/PEPPER

BUTTER: salted or unsalted is fine.

SHALLOTS: Shallots will give a delicate onion flavor. You could use red onion in a pinch.

GARLIC

HEAVY CREAM: This is a decadent dish so don’t skimp out and use milk. Use the heavy cream!

GRUYERE CHEESE: The most common cheese used when making a gratin. It is a smooth melting Swiss cheese. It has a nutty, mild sweet flavor.

PANKO BREAD CRUMBS: I adore the crunch that panko bread crumbs add to dishes. It’s light and crunchy, perfect for the topping.

How do make Brussel Sprouts Gratin?

STEP #1: Preheat oven to 400 degrees. Combine Brussels sprouts, 1 tablespoon oil, salt and pepper together in a casserole dish and toss to coat. Bake in preheated oven for 15 minutes.

STEP #2: Meanwhile, melt butter in a small saucepan over medium heat. Add garlic and shallots and cook just until garlic is fragrant, about 30 seconds. Pour in cream and cook just until the cream starts to steam.

STEP #3: Remove brussels from oven and pour cream mixture over the top. Spread cheese over the top. Combine bread crumbs and remaining tablespoon oil together and sprinkle over the top. Bake for 15 more minutes or until bubbly. Turn on the broiler for 1 – 2 minutes to brown the top. Serve immediately.

Can this recipe be doubled?

This recipe can easily be doubled if you’re feeding a crowd!

Storing leftovers:

Store leftovers in the refrigerator and eat within a couple of days. Can be reheated in the oven. A minute or two under the broiler will crisp it back up again.

Looking for a main dish to serve with this Brussels Sprouts Gratin recipe?

Brined Fried Chicken Recipe

Fried Cod

Sous Vide Flat Iron Steak

Love Brussels Sprouts? Here are some more Brussel Sprouts recipes, you’re sure to love!

Cheesy Brussels Sprouts Dip

Cajun Roasted Brussels Sprouts

Sheet Pan Tri Tip Roast with Brussels Sprouts

Note: This recipe was originally posted in 2017. It was updated with new instructions, photos and nutrition information in 2021.