Cheesy cauliflower gratin, Finnish style, is a creamy, comforting bake made with tender cauliflower florets in a rich béchamel sauce, flavored with Mustaleima emmental cheese and a hint of Dijon mustard. It works beautifully as a light vegetarian main or as a side for roasted or grilled meats and fish, pairing well with boiled potatoes, fresh salads, or pickled vegetables.
Growing up, we often had this gratin at home. Sometimes as a main course with a green salad or pickled cucumbers and beets, and other times as a side for chicken, salmon, or Finnish meatballs. Its creamy texture and cheesy flavor make it a favorite for cozy family dinners.
How to Make Cheesy Finnish Cauliflower Gratin
Use tender but slightly firm cauliflower florets and briefly blanch them for 3–4 minutes. They will finish cooking in the oven while baked in the creamy béchamel sauce. The sauce is made with butter, flour, and milk, then enriched with Mustaleima emmental cheese and a touch of Dijon mustard. Taste the sauce before adding cheese, as some varieties can be quite salty, and adjust the seasoning as needed.
Arrange the cauliflower in an ovenproof dish, pour over the cheese sauce, and sprinkle a little extra grated emmental on top. Bake until golden and bubbling, then allow to cool slightly before serving.
What to Serve with Vegetable Gratin

Finnish Cauliflower gratin served with grilled salmon and vegetables.
This gratin is excellent as a side for roasted or grilled meats and fish, or as a main with a simple salad. Serve with boiled potatoes (choose a less starchy variety), steamed green beans, and a fresh tomato-onion-red bell pepper salad. Pickled cucumbers or beets add a tangy contrast to the rich, cheesy gratin.
The dish can also be prepared ahead and baked just before serving, making it perfect for family dinners or entertaining. For a complete Finnish-style meal, pair it with grilled salmon, Grandmom’s Finnish meatballs, or a pickled cucumber salad.
Tips for the Best Cheesy Finnish Cauliflower Gratin
Use Mustaleima emmental or another aged emmental cheese for authentic flavor. Briefly blanch the cauliflower to ensure it finishes cooking in the oven while soaking up the sauce. Serve with pickled vegetables or a simple mixed green salad for a fresh, balanced meal.
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Finnish Cauliflower Gratin
Ingredients
- 1 medium cauliflower cut into florets
- 2 tbsp butter
- 2 tbsp all-purpose flour
- 2 cups (500 ml) milk
- 1 cup (100 g) aged Emmental or Gruyère, grated (plus extra for topping)
- 1 tsp Dijon mustard
- Salt to taste
- Freshly ground black pepper to taste
Instructions
Preheat oven to 200°C (390°F).
- Prepare cauliflower: Briefly blanch florets in boiling salted water for 3 – 4 minutes, just until slightly tender but still firm. Drain well and set aside.
Make béchamel sauce:
- Melt butter in a saucepan over medium heat.
- Stir in flour and cook 1 minute, whisking constantly to form a roux.
- Gradually add milk, whisking until smooth and thickened into a classic béchamel sauce.
- Remove from heat and stir in grated Emmental or Gruyère, Dijon mustard, salt, and pepper until fully melted and smooth.
Assemble and bake the gratin:
- Arrange the cauliflower florets in an ovenproof dish.
- Pour the cheesy béchamel sauce evenly over the florets.
- Sprinkle extra grated cheese on top for a golden, bubbling finish.
- Bake: 20–25 minutes until the cheesy cauliflower gratin is golden and bubbling, and the florets are fully tender.
- Let cool slightly before serving.
- Enjoy warm as a side dish or a light vegetarian main.
Notes
- Use aged Emmental or Gruyère for the richest, nutty flavor.
- Serve with pickled cucumbers or pickled beets for a refreshing contrast.
- Pair with a mixed green salad for a light, balanced meal.
- The gratin can be prepared ahead and baked just before serving.




