Creamy cauliflower gratin with Gruyere, Parmesan, and a buttery breadcrumb topping. A low-carb, vegetarian side dish perfect for any meal. Turn cauliflower into a star with this creamy, cheesy gratin. Golden, crispy, and utterly irresistible—comfort food at its finest. #CauliflowerGratin
When it comes to transforming humble vegetables into something extraordinary, few dishes do it as well as a gratin. Originating from France, the gratin is a culinary masterpiece that combines simple ingredients with a golden, crispy topping to create a dish that’s both comforting and indulgent. Today, I’m sharing my take on a Cauliflower Gratin, a dish that elevates the often-overlooked cauliflower into a creamy, cheesy rock star.
The History of Gratin: From Humble Beginnings to Global Fame
The gratin has a rich history that dates back to 16th-century France. The term “gratin” comes from the French word gratter, meaning “to scrape,” referring to the deliciously crispy top layer that forms during baking. Initially, gratins were simple dishes made with leftovers or inexpensive ingredients like potatoes, cream, and cheese. Over time, they evolved into more sophisticated creations, appearing in French cookbooks and gracing both humble family tables and grand banquets.
One of the most iconic versions is the Gratin Dauphinois, a dish made with thinly sliced potatoes, cream, and cheese. By the 20th century, gratins had spread beyond France, inspiring countless variations worldwide. Today, you’ll find gratins made with everything from vegetables and seafood to pasta, each with its own unique twist.
Why Cauliflower Gratin?
Cauliflower is one of those vegetables that often gets relegated to the sidelines. Here in New Zealand, the cauliflowers are enormous, and I often find myself using only a quarter or a third of one for stir-fries or vegetable dishes like chopsuey. The rest usually sits in my vegetable bin, waiting for its next use. That’s where this Cauliflower Gratin comes in. It’s the perfect way to use up a whole cauliflower and turn it into something truly special.
The star of this dish is undoubtedly the mornay sauce. Made with butter, flour, hot milk, and a blend of Gruyere and Parmesan cheeses, it’s the epitome of creamy indulgence. A hint of nutmeg adds warmth and depth, while freshly ground black pepper brings a subtle kick. The sauce coats the cauliflower florets perfectly, ensuring every bite is packed with flavour.
The Perfect Topping
No gratin is complete without its signature crispy topping. For this recipe, I combine fresh breadcrumbs with Gruyere cheese and a drizzle of melted butter. When baked, it forms a golden crust that contrasts beautifully with the creamy cauliflower beneath. It’s the kind of dish that makes you want to dig in straight from the oven.
Why You’ll Love This Dish
This Cauliflower Gratin is more than just a side dish—it’s a showstopper. Whether you’re serving it at a dinner party or enjoying it as a cosy family meal, it’s guaranteed to impress. It’s also incredibly versatile. Pair it with roasted meats, grilled fish, or even enjoy it on its own as a light main course.
What I love most about this recipe is how it transforms something as simple as cauliflower into a dish that feels luxurious and indulgent. It’s proof that with the right ingredients and a little creativity, even the humblest vegetables can shine.
Cook the cauliflower florets in a large pot of boiling salted water for 5 minutes, until tender but still firm. Drain well.
Melt butter in a medium saucepan over low heat. Add the flour and stir constantly with a wooden spoon for 2 minutes. Gradually pour in the hot milk, stirring until the mixture comes to a boil. Let it boil for 1 minute, whisking constantly, until thickened. Remove from heat and stir in 1 teaspoon of salt, pepper, nutmeg, ½ cup of Gruyere, and the Parmesan.
Spread â…“ of the sauce on the bottom of an 8×11-inch baking dish. Arrange the drained cauliflower florets on top, then pour the remaining sauce evenly over them.
Combine the breadcrumbs with the remaining ¼ cup of Gruyere and ½ cup of grated Mozzarella. Sprinkle this mixture over the cauliflower. Season lightly with salt and pepper.
Bake in a 190°C preheated oven for 25 minutes, until the top is golden brown and bubbling. Serve hot or at room temperature.
I had my very first cauliflower gratin in Florence, Italy, back in 1991. Funny the things we remember, isn’t it? But it was a revelation. I love your recipe and will make it soon, as this is cauliflower season here — such beautiful heads at the market!
Absolutely love Gruyere!
When healthy and decadent meet together! Such a tasty gratin with a perfectly browned crust is simply amazing.
I had my very first cauliflower gratin in Florence, Italy, back in 1991. Funny the things we remember, isn’t it? But it was a revelation. I love your recipe and will make it soon, as this is cauliflower season here — such beautiful heads at the market!