Creamy Baked Cauliflower Gratin
This Creamy Baked Cauliflower Gratin is the perfect side dish for any occasion, from family dinners to holiday gatherings. With its rich and creamy cheese sauce enveloping tender cauliflower florets, this dish offers a comforting and satisfying experience. It’s vegetarian-friendly, easy to prepare, and can be made ahead of time, making it an ideal choice for busy cooks. Plus, the combination of Gruyère and Parmesan cheeses adds depth of flavor that will impress your guests.

Why You’ll Love This Recipe
- Deliciously Creamy: The white sauce made with butter, flour, and milk creates a luscious base that perfectly complements the cauliflower.
- Easy to Prepare: With just a few simple steps, you can whip up this delightful dish without any fuss.
- Versatile Side Dish: This gratin pairs beautifully with a variety of main courses, making it suitable for both casual dinners and festive occasions.
- Vegetarian-Friendly: Packed with wholesome ingredients, this recipe caters to vegetarians without sacrificing flavor.
- Make Ahead Option: You can prepare the gratin in advance and bake it just before serving, saving you time in the kitchen.
Tools and Preparation
Before diving into the cooking process, gather your essential tools. Having everything ready will make your cooking experience smooth and enjoyable.
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Essential Tools and Equipment
- Casserole dish (8 x 11 x 2-inch)
- Medium saucepan
- Whisk
- Colander
- Knife
- Cutting board
Importance of Each Tool
- Casserole dish: Ensures even baking and provides space for layering ingredients.
- Medium saucepan: Perfect for making the cheese sauce without overcrowding.
- Whisk: Helps create a smooth sauce by combining ingredients thoroughly.
Ingredients
This cauliflower gratin recipe makes a super-satisfying vegetarian side dish, adapted from Ina Garten.
For the Cauliflower
- 3-pound head of cauliflower, cut into large florets
- Kosher salt
For the Cheese Sauce
- 3 tablespoons unsalted butter
- 3 tablespoons all-purpose flour
- 2 cups milk
- 1 sprig fresh thyme, plus more to garnish
- 12 turns fresh black pepper
- 1/4 teaspoon grated nutmeg
- 3/4 cup grated Gruyère cheese, (Comté is a good substitute)
- 1/2 cup grated parmesan cheese
- 1/4 cup fresh bread crumbs
How to Make Creamy Baked Cauliflower Gratin
Step 1: Prepare the Cauliflower
- Steam or boil the cauliflower in salted water until firm but tender, about 5 to 6 minutes. If boiling, ensure you salt the water well and drain very thoroughly in a colander.
Step 2: Preheat the Oven
While the cauliflower is cooking, preheat your oven to 375°F. Grease your casserole dish with butter or cooking spray to prevent sticking.
Step 3: Make the Cheese Sauce
- Melt the butter in a medium saucepan over medium heat.
- Add the flour and whisk until it forms a tan brown roux.
- Gradually add splashes of milk while whisking continuously until you achieve a thick liquid consistency.
- Stir in the thyme sprig, nutmeg, salt, and pepper.
- Boil while whisking constantly until thickened to resemble heavy cream consistency (about one minute).
Step 4: Combine Ingredients
- Remove the cheese sauce from heat. Stir in Parmesan cheese and half of Gruyère until melted and smooth.
- Spoon a layer of cheese sauce into the bottom of your greased casserole dish.
- Place the cooked cauliflower on top of this layer.
- Pour remaining cheese sauce over cauliflower florets. Taste for seasoning; add more salt if necessary.
Step 5: Add Toppings
- Top with fresh bread crumbs and remaining Gruyère cheese.
- Garnish with extra thyme if desired.
Step 6: Bake
Bake in the top third of your oven for about 30 minutes or until golden brown on top. Serve hot or at room temperature for an enjoyable dining experience!
How to Serve Creamy Baked Cauliflower Gratin
Serving Creamy Baked Cauliflower Gratin is a delightful way to elevate any meal. This dish pairs well with various options, making it a versatile side.
Pair with Fresh Salads
- Mixed Greens Salad: A light salad with vinaigrette complements the richness of the gratin.
- Caesar Salad: The bold flavors of Caesar dressing balance the creamy texture beautifully.
Serve with Protein Dishes
- Roasted Chicken: Juicy, roasted chicken adds a savory contrast to the gratin.
- Grilled Fish: The freshness of grilled fish pairs well with the rich and cheesy cauliflower.
Add Bread for a Complete Meal
- Garlic Bread: Crispy garlic bread provides a crunchy element that enhances the dish’s creaminess.
- Dinner Rolls: Soft rolls are perfect for soaking up any leftover cheese sauce.
Garnish for Extra Flavor
- Fresh Herbs: Sprinkle chopped parsley or more thyme on top before serving for added freshness.
- Chili Flakes: A dash of chili flakes adds a subtle kick to every bite.

How to Perfect Creamy Baked Cauliflower Gratin
To achieve the best results with your Creamy Baked Cauliflower Gratin, follow these tips for an even more delicious dish.
- Use Fresh Ingredients: Fresh cauliflower and herbs enhance flavor and texture in your gratin.
- Adjust Cheese Types: Experiment with different cheeses like cheddar or fontina for a unique twist.
- Don’t Overcook Cauliflower: Steam until just tender; this ensures it holds its shape during baking.
- Taste and Adjust Seasoning: Always taste your cheese sauce before adding it to the cauliflower; adjust salt and pepper as needed.
- Layer Properly: Ensure even distribution of cheese sauce and breadcrumbs for consistent flavor throughout.
- Let It Rest Before Serving: Allowing the gratin to sit for a few minutes after baking helps set the layers, making it easier to serve.
Best Side Dishes for Creamy Baked Cauliflower Gratin
Pairing your creamy dish with complementary sides can enhance your dining experience. Here are some great options:
- Roasted Brussels Sprouts: Crispy and caramelized, these sprouts add depth to your meal.
- Quinoa Pilaf: A nutty quinoa pilaf provides a hearty contrast while remaining light.
- Garlicky Green Beans: Sautéed green beans with garlic offer a fresh crunch alongside the gratin.
- Herb Rice: Fluffy rice infused with herbs balances the richness of the cauliflower dish nicely.
- Mashed Potatoes: Creamy mashed potatoes create a comforting vibe that pairs beautifully with gratin.
- Stuffed Peppers: Colorful stuffed peppers filled with grains and veggies bring extra nutrition and flavor to your plate.
Common Mistakes to Avoid
When preparing your Creamy Baked Cauliflower Gratin, it’s easy to make a few common mistakes. Here are some tips to ensure your dish turns out perfectly.
- Overcooking the Cauliflower: Cooking the cauliflower too long can lead to mushiness. Steam or boil it just until tender but still firm, about 5-6 minutes.
- Neglecting Seasoning: Failing to season properly can make your gratin bland. Always taste your cheese sauce before pouring it over the cauliflower and adjust salt and pepper as needed.
- Skipping the Roux: A proper roux is essential for a creamy texture. Make sure you cook the flour and butter until they are a nice tan color before adding milk.
- Using Cold Milk: Adding cold milk to the roux can lead to lumps. Always warm up your milk slightly before incorporating it into the mixture for a smoother sauce.
- Not Preheating the Oven: Baking in a cold oven can affect cooking time and texture. Preheat your oven to 375°F before placing your dish inside for even cooking.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container.
- Creamy Baked Cauliflower Gratin will last for up to 3 days in the refrigerator.
Freezing Creamy Baked Cauliflower Gratin
- Place cooled gratin in a freezer-safe container.
- It can be frozen for up to 2 months.
Reheating Creamy Baked Cauliflower Gratin
- Oven: Preheat to 350°F, cover with foil, and bake for about 20 minutes until heated through.
- Microwave: Heat in short intervals of 1-2 minutes, stirring in between until warmed evenly.
- Stovetop: Warm in a saucepan over low heat, stirring frequently until hot.
Frequently Asked Questions
Here are some frequently asked questions about Creamy Baked Cauliflower Gratin.
Can I make Creamy Baked Cauliflower Gratin ahead of time?
Yes, you can prepare it a day ahead and refrigerate before baking. Just add some extra time when baking from cold.
What cheese works best in this recipe?
Gruyère is ideal for flavor, but you can also use Comté or even cheddar if you prefer a different taste.
Can I add meat to my Creamy Baked Cauliflower Gratin?
Absolutely! Cooked bacon or ham can be mixed in for added flavor and protein.
Is this recipe suitable for meal prep?
Yes! This gratin makes a great side dish for meal prep and reheats well throughout the week.
Final Thoughts
Creamy Baked Cauliflower Gratin is an incredibly satisfying vegetarian side dish that brings comfort food vibes to any meal. Its creamy texture and cheesy goodness make it a favorite among both kids and adults alike. Feel free to customize with your favorite herbs or additional vegetables to suit your taste!
Creamy Baked Cauliflower Gratin
- Total Time: 45 minutes
- Yield: Serves 8
Description
Creamy Baked Cauliflower Gratin is a delightful vegetarian side dish that elevates any meal with its rich and cheesy goodness. Tender cauliflower florets are enveloped in a luscious cheese sauce made from Gruyère and Parmesan, creating a comforting blend of flavors that will impress your guests and satisfy your taste buds. This gratin is easy to prepare, perfect for busy cooks, and can even be made ahead of time for convenience. Whether you’re hosting a holiday gathering or enjoying a family dinner, this dish is sure to become a favorite.
Ingredients
- 3-pound head of cauliflower
- 3 tablespoons unsalted butter
- 3 tablespoons all-purpose flour
- 2 cups milk
- 3/4 cup grated Gruyère cheese
- 1/2 cup grated Parmesan cheese
- Fresh thyme, salt, and pepper
Instructions
- Preheat oven to 375°F. Steam or boil cauliflower florets in salted water for about 5-6 minutes until firm but tender; drain well.
- In a medium saucepan, melt butter over medium heat. Whisk in flour until golden brown, then gradually add warmed milk, whisking until thickened.
- Stir in thyme, nutmeg, salt, pepper, and cheeses until smooth.
- Layer some cheese sauce in a greased casserole dish; add cauliflower and pour remaining sauce over it.
- Top with breadcrumbs and remaining Gruyère cheese. Bake for about 30 minutes until golden brown.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: Vegetarian
Nutrition
- Serving Size: 1 cup (150g)
- Calories: 250
- Sugar: 4g
- Sodium: 450mg
- Fat: 15g
- Saturated Fat: 9g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 20g
- Fiber: 4g
- Protein: 10g
- Cholesterol: 35mg







