Name: Cauliflower Gratin
Prep time: 20 min
Cook time: 25 min
Total time: 45 min
Ingredients: 1 large cauliflower head (cut into bite-sized florets); 2 tablespoons olive oil (extra virgin); 1 cup heavy cream; 1 cup cheddar cheese (shredded); 0.5 cup Parmesan cheese (grated); 1 teaspoon garlic powder; 1 teaspoon onion powder; 0.5 teaspoon salt; 0.25 teaspoon black pepper (freshly ground preferred); 0.25 teaspoon cayenne pepper (just a pinch for a little heat); 0.5 cup breadcrumbs (optional, panko or regular); 2 tablespoons fresh parsley (chopped, for garnish)

Jump to Recipe Print Recipe

If you’re searching for a comforting side dish that’s both creamy and packed with flavor, look no further than this Cauliflower Gratin. It’s a delightful way to elevate humble cauliflower into a rich, cheesy casserole that pairs beautifully with everything from roasted meats to a simple green salad. With a luscious blend of cheddar and Parmesan cheeses, a hint of garlic and onion, and a subtle kick of cayenne pepper, this dish is sure to become a family favorite.

What Sets This Recipe Apart

What makes this Cauliflower Gratin truly stand out is its perfect balance of creaminess and texture. The cauliflower florets are tender but not mushy, bathed in a velvety sauce made with heavy cream and a duo of flavorful cheeses. The garlic and onion powders add a warm depth without overpowering the dish, while the cayenne pepper provides just enough heat to keep things interesting. A crunchy breadcrumb topping adds a satisfying contrast, but it’s completely optional if you prefer a smoother finish. Plus, the fresh parsley garnish adds a pop of color and freshness that brightens the entire dish.

This recipe is incredibly adaptable and easy to prepare, making it ideal for weeknight dinners or special occasions. Whether you’re serving it alongside a hearty roast or pairing it with a lighter dish like Grilled Halloumi And Vegetable Skewers Salad, this gratin is sure to impress.

What to Buy

1 large head of cauliflower – Look for a firm, white head with fresh green leaves and no brown spots.
Olive oil – Use extra virgin for the best flavor.
Heavy cream – This creates the rich, luscious sauce.
Cheddar cheese – Sharp or mild, shredded fresh for melting.
Parmesan cheese – Freshly grated for maximum flavor.
Garlic powder – Adds subtle depth.
Onion powder – Enhances the savory notes.
Salt – To season.
Black pepper – Freshly ground preferred.
Cayenne pepper – Just a pinch for a little heat.
Breadcrumbs (optional) – Panko or regular for a crunchy topping.
Fresh parsley – For garnish, adds color and freshness.

Appliances & Accessories

Large baking dish – A 9×13 inch dish works perfectly.
Large pot – For boiling or steaming the cauliflower.
Colander – To drain the cauliflower.
Mixing bowls – For combining ingredients.
Grater – To shred the cheddar and Parmesan cheeses.
Measuring cups and spoons – For precise seasoning.
Wooden spoon or spatula – For mixing the sauce and ingredients.

Make Cauliflower Gratin: A Simple Method

Step 1: Prepare the Cauliflower

Start by washing and cutting your large head of cauliflower into bite-sized florets. Bring a large pot of salted water to a boil, then add the cauliflower florets. Boil for about 5 minutes until just tender but still firm. You want them soft enough to eat but not mushy. Drain well in a colander and set aside.

Step 2: Make the Cheese Sauce

In a saucepan over medium heat, warm 2 tablespoons of olive oil. Pour in 1 cup of heavy cream and gently heat until it starts to simmer — do not bring to a boil. Stir in 1 teaspoon each of garlic powder and onion powder, ½ teaspoon salt, ¼ teaspoon black pepper, and ¼ teaspoon cayenne pepper for a subtle kick. Gradually whisk in 1 cup shredded cheddar cheese and ½ cup grated Parmesan cheese until fully melted and smooth. Remove from heat.

Step 3: Combine and Assemble

In your baking dish, arrange the cooked cauliflower florets evenly. Pour the creamy cheese sauce over the cauliflower, making sure all the florets are coated. If you love a crunchy topping, sprinkle ½ cup of breadcrumbs evenly over the gratin.

Step 4: Bake to Perfection

Preheat your oven to 375°F (190°C). Place the baking dish in the oven and bake for 20–25 minutes, or until the top is golden brown and bubbly. If using breadcrumbs, they should be nicely toasted.

Step 5: Garnish and Serve

Remove the gratin from the oven and let it cool for a few minutes. Sprinkle 2 tablespoons of chopped fresh parsley over the top for a vibrant finish. Serve warm as a comforting side dish.

Holiday & Seasonal Touches

Add a pinch of nutmeg to the cheese sauce for a warm, festive aroma.
Sprinkle toasted sliced almonds or chopped walnuts on top for extra crunch and a nutty flavor.
Mix in some cooked bacon bits or pancetta if desired for a smoky twist.
Incorporate fresh thyme or rosemary into the sauce for an herby depth that complements holiday meals.
Serve alongside rich mains like roast chicken or turkey to create a hearty seasonal spread.

Things That Go Wrong

Cauliflower too mushy: Overcooking the florets can make the gratin soggy. Boil just until tender.
Cheese sauce curdling: Avoid boiling the cream; heat gently and stir continuously to keep the sauce smooth.
Top not crispy: Skip the baking time or breadcrumbs, and you won’t get that golden, crunchy crust.
Dish too salty: Measure salt carefully, especially if your cheeses are already salty.

Make-Ahead & Storage

This Cauliflower Gratin can be prepared a day in advance. Follow the recipe through assembling the dish, then cover tightly with foil and refrigerate. When ready to serve, remove the foil and bake as directed, adding a few extra minutes if baking straight from cold.

Leftovers store beautifully in an airtight container in the fridge for up to 3 days. Reheat in the oven or microwave until warmed through. For best texture, reheat in the oven to maintain that crispy top.

Frequently Asked Questions

Can I use a different type of cheese?

Absolutely! While cheddar and Parmesan create a classic flavor, you can swap in Gruyère, mozzarella, or even a mild Monterey Jack. Just ensure the cheese melts well for that creamy texture.

Is it possible to make this recipe dairy-free?

For a dairy-free version, substitute the heavy cream with full-fat coconut milk or a plant-based cream alternative. Use vegan cheese shreds that melt well to maintain the creamy, cheesy feel.

How do I make the topping extra crunchy?

Using panko breadcrumbs and tossing them with a little olive oil or melted butter before sprinkling on top helps achieve a crispier crust. Broiling for the last 1-2 minutes also adds a golden finish – just watch carefully to prevent burning.

Can I add other vegetables to this gratin?

Yes! Steamed broccoli, cooked peas, or blanched green beans can be mixed with the cauliflower for a colorful, veggie-packed gratin. Adjust the cooking time slightly if you add denser vegetables.

Cheesy Scalloped Potatoes Gratin – Another creamy, cheesy casserole perfect for cozy dinners.
Fresh Herb Potato Salad – A refreshing side to balance out richer dishes.
Grilled Halloumi And Vegetable Skewers Salad – A light and flavorful companion to your gratin.

Make It Tonight

Ready to dive into this cozy Cauliflower Gratin? Gather your ingredients, preheat that oven, and in under an hour, you’ll have a rich, comforting dish ready to wow your family or guests. It’s perfect for a weeknight meal or as part of a festive holiday spread. Pair it with your favorite mains and a crisp salad for a complete, satisfying dinner. This recipe is straightforward, forgiving, and utterly delicious — a perfect way to enjoy cauliflower in a whole new way.

Share on Pinterest