Imagine a dish that transforms humble Brussels sprouts into a creamy, cheesy delight! My Creamy Garlic Parmesan Brussels Sprout Gratin is perfect for any meal or as a crowd-pleasing side. With just a handful of ingredients and simple steps, you can create a rich, comforting dish that even vegetable skeptics will love. Ready to impress your family and friends? Let’s dive into this cheesy adventure!
Why I Love This Recipe
- Comforting Creaminess: This dish combines the richness of heavy cream and cheeses, creating a luxurious texture that makes Brussels sprouts truly irresistible.
- Garlic Goodness: The aromatic garlic enhances the flavor profile, making every bite burst with savory goodness that garlic lovers will adore.
- Easy to Prepare: With minimal prep work and straightforward steps, this gratin is perfect for both weeknight dinners and special occasions.
- Crispy Topping: The breadcrumb layer adds a delightful crunch, contrasting beautifully with the creamy filling and making each bite satisfying.
Ingredients
Main Ingredients
- 1 pound Brussels sprouts, trimmed and halved
- 2 tablespoons olive oil
- 4 cloves garlic, minced
- 1 cup heavy cream
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1 cup grated Parmesan cheese
- 1 cup shredded mozzarella cheese
- 1/4 cup breadcrumbs
- 2 tablespoons fresh parsley, chopped (for garnish)
Seasoning
- Salt and pepper to taste
Optional Garnishes
- You can add herbs like thyme or rosemary.
- A sprinkle of paprika adds a nice kick.
- Try using crushed red pepper for heat.
When I cook this dish, I focus on fresh ingredients. Fresh Brussels sprouts make all the difference. Trim them well and cut them in half for even cooking. The garlic adds flavor, so don’t skip it!
I use olive oil to help the sprouts roast nicely. Salt and pepper are key to bring out the flavors.
For the creamy sauce, heavy cream is a must. It gives the gratin its rich, smooth texture. I also love adding Parmesan cheese for a salty note. The mozzarella cheese melts beautifully and adds that gooey goodness.
Breadcrumbs on top create a perfect crunch. They contrast well with the creamy inside.
Don’t forget the parsley! It brightens up the dish and makes it look lovely.
Feel free to experiment with other herbs or spices. Each option can change the flavor in an exciting way. Enjoy creating your own version!

Step-by-Step Instructions
Preparation
First, preheat your oven to 375°F (190°C). This step is key to getting a nice golden top. Next, take 1 pound of Brussels sprouts. Trim and halve them. In a large bowl, combine the halved sprouts with 2 tablespoons of olive oil. Add salt and pepper to taste. Toss until the sprouts are coated well.
Roasting the Brussels Sprouts
Now, spread the sprouts on a baking sheet in a single layer. Make sure they are not crowded. Roast them in the oven for about 20 minutes. You know they are ready when they become tender and start to brown slightly. This roasting step brings out their natural sweetness.
Making the Creamy Sauce
While the Brussels sprouts roast, let’s make the creamy sauce. In a saucepan over medium heat, add 4 cloves of minced garlic. Sauté for 1-2 minutes until fragrant. Then, pour in 1 cup of heavy cream. Stir in 1 teaspoon of garlic powder and 1 teaspoon of onion powder. Add half of the grated Parmesan cheese, about 1 cup. Cook this mixture until it heats through and thickens a bit.
Assembling the Gratin
Once the Brussels sprouts are roasted, take them out of the oven. Transfer them to a greased baking dish. Pour the creamy garlic sauce evenly over the sprouts. Next, sprinkle the remaining Parmesan cheese and 1 cup of shredded mozzarella cheese on top. For a crispy finish, add 1/4 cup of breadcrumbs as the topping.
Baking Instructions
Now, bake the gratin in the preheated oven for 25-30 minutes. Watch for the top to become golden and bubbly. After baking, remove the dish from the oven. Let it cool for a few minutes before serving. This cooling time helps the flavors meld. Garnish with 2 tablespoons of chopped fresh parsley for a nice touch!
Tips & Tricks
Achieving the Perfect Texture
To get the best roasted Brussels sprouts, start by cutting them in half. This allows them to cook evenly. Toss the sprouts with olive oil, salt, and pepper. Spread them in a single layer on a baking sheet. Roast them at 375°F for about 20 minutes. Look for a slight browning and tenderness. This adds flavor and texture.
For a creamy sauce, heat your garlic in a pan. Sauté it for just a minute or two. Then, add heavy cream and stir. Mix in garlic powder and onion powder for taste. Use half of the Parmesan cheese now. Cook until the sauce gets warm and a bit thick. This ensures that the sauce coats the sprouts well.
Flavor Enhancements
To boost the flavor, consider adding a pinch of nutmeg or thyme. These spices add depth. You can also try fresh rosemary or sage for a twist. Each herb brings a unique taste to the dish.
For cheese, feel free to mix it up. Instead of just mozzarella, use Gruyere or cheddar. These cheeses melt well and give a nice, rich taste. You can also try vegan cheese if you want a plant-based option.
Serving Suggestions
This gratin pairs well with proteins like chicken or fish. It makes a great side dish for a holiday meal. Serve it alongside a simple green salad for balance.
For presentation, sprinkle fresh parsley on top after baking. This adds color and freshness. Consider using a nice baking dish to serve it in. It looks lovely on the table and makes serving easier.
Pro Tips
- Choose Fresh Brussels Sprouts: Select Brussels sprouts that are firm, bright green, and tightly closed. This ensures the best flavor and texture for your gratin.
- Adjust Creaminess: If you prefer a richer dish, you can substitute some of the heavy cream with cream cheese for an even creamier texture.
- Add a Flavor Kick: Consider incorporating a pinch of red pepper flakes or a dash of hot sauce into the creamy sauce for a spicy twist.
- Breadcrumb Alternatives: For a gluten-free option, use crushed gluten-free crackers or almond flour instead of traditional breadcrumbs.
Variations
Different Cheese Options
You can change the flavor with different cheeses. Gruyere adds a nutty taste. Cheddar gives a sharp twist. Both can replace mozzarella. If you need a vegan option, try cashew cheese or almond cheese. These alternatives melt well and keep it creamy.
Additional Vegetables
Mix in other veggies for more color and taste. Cauliflower and spinach blend nicely with Brussels sprouts. Carrots add sweetness. You can also use seasonal veggies like squash in fall or asparagus in spring. Each choice brings new flavors to the dish.
Healthier Substitutes
Want a lighter gratin? Use half-and-half instead of heavy cream. It cuts fat but keeps creaminess. For gluten-free options, use crushed rice cakes or ground nuts instead of breadcrumbs. These swaps make the dish fit different diets while still tasting great.
Storage Info
Refrigeration
To store leftovers, place them in an airtight container. This keeps the dish fresh. It is best to store it within two hours of cooking. The recommended shelf life in the fridge is about 3 to 4 days. If you want to enjoy the gratin later, make sure to keep it sealed well.
Freezing Tips
You can freeze this dish before or after baking. If freezing before baking, wrap it well in plastic wrap and then in foil. This keeps air out and avoids freezer burn. If you freeze it after baking, let it cool completely first. Store it in a suitable container. To reheat, let it thaw in the fridge overnight. Then, bake it at 350°F (175°C) until heated through for the best texture.
Serving Leftovers
There are fun ways to repurpose leftovers. You can mix them into pasta for a creamy dish. You can also use them in a breakfast casserole with eggs. To reheat, use the oven or microwave. If using the microwave, warm in short intervals. Check often to avoid overcooking. This keeps your gratin creamy and delicious!
FAQs
What are Brussels sprouts?
Brussels sprouts are small green vegetables. They look like tiny cabbages. They are packed with nutrients. They are high in vitamins C and K. They also have fiber and antioxidants. Eating Brussels sprouts can help keep you healthy.
Can I make this dish ahead of time?
Yes, you can prepare this dish in advance. You can roast the Brussels sprouts a day before. Store them in the fridge after roasting. You can also make the creamy sauce ahead. Just mix it in when you are ready to bake. Cover the dish with foil before baking to keep it moist.
How do I know when the gratin is done baking?
Look for a golden top and bubbling edges. The cheese should melt and slightly brown. If you insert a fork, the sprouts should be tender. Let it cool for a few minutes before serving.
Can I use frozen Brussels sprouts for this recipe?
Yes, you can use frozen Brussels sprouts. They should be thawed and drained first. This helps avoid excess moisture in the dish. You might need to bake a bit longer to get them fully cooked.
What can I substitute for heavy cream?
If you need a substitute for heavy cream, try these options:
- Coconut milk for a dairy-free version.
- Half-and-half for a lighter cream.
- Greek yogurt mixed with milk for a tangy taste.
- Cashew cream for a vegan option.
This blog gave you all the steps to make a delicious Brussels sprouts gratin. We covered the key ingredients, the creamy sauce, and tips for perfect texture. Remember, you can easily adapt this dish with different cheeses and veggies. Don't be afraid to experiment with flavors. Store leftovers well, and reheat them safely to enjoy later. Now, you’re ready to impress at your next meal!