Oh, this Brussels Sprouts Gratin – Creamy & Cheesy Bake is just the star of any holiday table, trust me! It’s one of those dishes that makes everyone at the table perk up, even the picky eaters. I swear, it was the first side dish to disappear at my cousin’s Thanksgiving last year, and I’ve been asked for the recipe a dozen times since. It’s got that perfect balance of tender Brussels sprouts swimming in a ridiculously luscious, cheesy sauce that just screams “special occasion.” If you’re looking for a side that feels fancy but is surprisingly easy to whip up, you’ve found it!

Why You’ll Love This Brussels Sprouts Gratin – Creamy & Cheesy Bake
Seriously, what’s not to love? This dish is:
- Super Quick to Make: You can have it ready for the oven in about 15 minutes flat!
- Crowd-Pleasing Flavor: The creamy, cheesy sauce makes even the most skeptical eaters ask for seconds. It’s way better than just plain old roasted sprouts.
- Perfect for Thanksgiving: It’s a fantastic addition to your holiday spread, easily becoming one of your go-to thanksgiving vegetables. Say goodbye to boring side dishes with this amazing brussels sprouts casserole!
Ingredients for Your Creamy & Cheesy Brussels Sprouts Gratin
Alright, let’s gather our goodies! This is what you’ll need to make this amazing Brussels Sprouts Gratin – Creamy & Cheesy Bake:
- About 1.5 pounds of fresh Brussels sprouts. Make sure they’re trimmed up and then just cut ’em in half.
- 2 tablespoons of butter – the good stuff!
- 1 shallot, finely minced. If you don’t have shallots, a little bit of finely chopped onion works too.
- 2 cloves of garlic, minced up real fine.
- 1.5 cups of heavy cream. This is what makes it so wonderfully rich!
- About 0.5 cup of grated Parmesan cheese. Plus, a little extra for sprinkling on top, because, well, cheese!
- Salt, just to your taste.
- Freshly ground black pepper, to taste.
- And if you’re feeling fancy, a tiny pinch of nutmeg. It really wakes up the flavors!
Make sure those Brussels sprouts are dry after you prep them – we don’t want any watery surprises!
Ingredient Notes & Substitutions for Brussels Sprouts Gratin
The Parmesan cheese is key here; it gives that salty, nutty kick that just melts into the cream. And the heavy cream? That’s the secret to that luscious, dreamy sauce that coats every single sprout. If you can’t find shallots, a small yellow onion, minced super fine, will do the trick just fine. And for the cheese, feel free to experiment! Gruyere adds a lovely earthiness, or a sharp cheddar can give it a nice tang. Oh, and if you like a little crunch on top, mix some panko breadcrumbs with a tiny bit of melted butter and sprinkle it over the cheese before it goes in the oven. Yum!
How to Prepare Your Perfect Brussels Sprouts Gratin – Creamy & Cheesy Bake
Okay, let’s get this deliciousness in the oven! It’s really not complicated at all. First things first, preheat your oven to 375°F (190°C). You want it nice and hot so everything bakes up perfectly golden.
Blanching the Brussels Sprouts for Optimal Texture
Grab a pot and get some salted water boiling. Toss in your halved Brussels sprouts and let them hang out for about 3 to 4 minutes. This just gives them a head start on tenderness. Then, drain them SUPER well. Seriously, get all that water out, or your sauce might get a little soupy. Nobody wants that!
Crafting the Creamy Cheese Sauce for Your Gratin
Now, in an oven-safe skillet – this makes life so much easier – melt your butter over medium heat. Toss in that minced shallot and let it get soft and sweet, maybe about 3 minutes. Then, add your minced garlic and cook for just another minute until you can smell that amazing aroma. Pour in the heavy cream and bring it to a gentle simmer. Stir in the Parmesan cheese until it’s all melty and the sauce starts to thicken up just a bit. Season it with salt, pepper, and that optional pinch of nutmeg. Trust me, the nutmeg is a little secret weapon!

Assembling and Baking Your Brussels Sprouts Gratin
Add those blanched Brussels sprouts right into the creamy sauce in the skillet. Give them a good toss so every single sprout is coated in cheesy goodness. Sprinkle a little more Parmesan cheese over the top – go ahead, be generous! Now, carefully transfer that whole skillet into your preheated oven. Bake it for about 20 to 25 minutes. You’re looking for that topping to be beautifully golden brown and the sauce to be all bubbly around the edges. Let it rest for just a few minutes after it comes out; it’ll be super hot!
Tips for Success with Brussels Sprouts Gratin
To make sure your Brussels Sprouts Gratin – Creamy & Cheesy Bake is absolutely perfect every time, here are a few things I always keep in mind. First, pick out the freshest Brussels sprouts you can find – they should be firm and bright green, not wilted or yellow. When you’re blanching them, really do drain them well; nobody wants a watery gratin! I usually give them a good shake in the colander and even pat them dry with a paper towel just to be safe. For that gorgeous golden-brown topping, make sure you’ve got enough cheese sprinkled on top, and don’t be afraid to let it bake until it’s bubbly and a little caramelized around the edges. That’s where all the flavor is!
Serving Suggestions for Your Creamy & Cheesy Brussels Sprouts Gratin
This rich and decadent Brussels Sprouts Gratin – Creamy & Cheesy Bake is fantastic for all sorts of occasions, especially holidays! It’s the perfect partner for your roasted turkey or ham at Thanksgiving, easily becoming a favorite among your thanksgiving vegetables. It also makes a special side dish for a cozy Sunday dinner or any time you want to make a meal feel a little more festive. Honestly, it’s so good, you could serve it with almost anything!
Storing and Reheating Your Brussels Sprouts Gratin
Got leftovers? Lucky you! Once your Brussels Sprouts Gratin has cooled down a bit, just pop it into an airtight container and pop it in the fridge. It’ll keep nicely for about 2-3 days. When you’re ready to reheat, the best way to get that creamy goodness back is in the oven at around 350°F (175°C) for about 15-20 minutes, or until it’s heated through and bubbly again. Microwaving works too, but you might lose a little of that lovely texture, so the oven is my top pick!
Frequently Asked Questions about Brussels Sprouts Gratin
Got questions about this delicious brussels sprouts casserole? I’ve got answers!
Can I make this Brussels Sprouts Gratin ahead of time? Absolutely! You can assemble the whole dish (up to the baking step) a day in advance. Just keep it covered in the fridge. When you’re ready to bake, let it sit out for about 20 minutes to take the chill off, and then bake as directed, you might need to add a few extra minutes to the baking time.
Can I freeze this dish? I generally don’t recommend freezing this gratin once it’s baked. The creamy sauce can sometimes separate or get a watery texture after thawing. It’s best enjoyed fresh!
My sauce seems a little thin. What did I do wrong? Make sure you drained your Brussels sprouts really, really well after blanching! Excess water is the main culprit for a watery sauce. Also, ensure your cream was simmering gently and the Parmesan cheese melted in completely. If it’s still too thin, you can try simmering it a bit longer uncovered before adding the sprouts.
Can I use frozen Brussels sprouts for this? You can, but fresh ones are definitely best for texture. If you do use frozen, make sure they are completely thawed and patted very dry before blanching. You might need to adjust the blanching time slightly.
Nutritional Estimate for Brussels Sprouts Gratin – Creamy & Cheesy Bake
Just a heads-up, these numbers are estimates and can change depending on the brands you use and exactly how you make it. But, a serving of this delicious Brussels Sprouts Gratin – Creamy & Cheesy Bake is roughly:
- Calories: 350
- Fat: 30g
- Protein: 8g
- Carbohydrates: 10g
It’s definitely a rich dish, perfect for a special occasion!

For more delicious recipe ideas, check out Pinterest!
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Amazing Brussels Sprouts Gratin: 15 Min Prep
- Total Time: 45 minutes
- Yield: 6 servings
- Diet: Vegetarian
Description
A rich and creamy baked Brussels sprouts dish, perfect for holidays or any special meal. This gratin features tender Brussels sprouts coated in a luscious cheese sauce and baked until golden and bubbly.
Ingredients
- 1.5 lbs Brussels sprouts, trimmed and halved
- 2 tbsp butter
- 1 shallot, minced
- 2 cloves garlic, minced
- 1.5 cups heavy cream
- 0.5 cup grated Parmesan cheese, plus more for topping
- Salt, to taste
- Black pepper, to taste
- Pinch of nutmeg (optional)
Instructions
- Preheat your oven to 375°F (190°C).
- Blanch the Brussels sprouts in boiling salted water for 3-4 minutes. Drain well.
- In an oven-safe skillet, melt the butter over medium heat. Add the minced shallot and cook until softened, about 3 minutes.
- Add the minced garlic and cook for 1 minute more until fragrant.
- Pour in the heavy cream and bring to a gentle simmer. Stir in the Parmesan cheese until melted and the sauce thickens slightly.
- Season the cream sauce with salt, pepper, and a pinch of nutmeg if using.
- Add the blanched Brussels sprouts to the skillet and toss to coat them evenly in the sauce.
- Sprinkle a little extra Parmesan cheese over the top.
- Transfer the skillet to the preheated oven and bake for 20-25 minutes, or until the top is golden brown and the sauce is bubbly.
- Let it rest for a few minutes before serving.
Notes
- For a crispier topping, you can add breadcrumbs to the top before baking.
- Feel free to add other cheeses like Gruyere or cheddar for a different flavor profile.
- Ensure Brussels sprouts are well-drained after blanching to prevent a watery sauce.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 350
- Sugar: 5g
- Sodium: 400mg
- Fat: 30g
- Saturated Fat: 18g
- Unsaturated Fat: 12g
- Trans Fat: 0g
- Carbohydrates: 10g
- Fiber: 4g
- Protein: 8g
- Cholesterol: 90mg







