
This Caramelized Leek and Mushroom Gruyere Pasta will knock your socks off, and it only needs a handful of basic ingredients. The mix of sweet leeks, woodsy mushrooms, and the nutty taste of Gruyere creates a cozy meat-free meal that works any night of the week and puts a tasty spin on spring flavors.
What Makes This Meal Special
This pasta brings together rich, sweet, and savory in one amazing dish. When leeks get caramelized, they turn naturally sweet, while mushrooms add that hearty, earthy taste. The Gruyere pulls everything into a creamy, nutty harmony. It's fancy enough for company but simple enough for Tuesday night dinner – tastes like a treat but isn't hard to make.
What You'll Need For Your Pasta
- Pasta: 1 pound pappardelle or fettuccine.
- Leeks: 3 large ones, cleaned and cut into thin slices (just use white and light green bits).
- Mushrooms: 1 pound of various types, sliced up.
- Butter: 4 tablespoons to cook your veggies.
- Olive Oil: 2 tablespoons for the pan.
- Gruyere Cheese: 2 cups freshly grated up.
- Heavy Cream: 1 cup.
- White Wine: 1/2 cup to scrape up the yummy bits.
- Fresh Thyme: 2 teaspoons, chopped up small.
- Salt and Pepper: However much you like.
- Fresh Parsley: Chopped up for the top.
Cooking Your Mushroom Leek Pasta
- Get Those Leeks Going
- Mix butter and olive oil in a big skillet over medium heat. Toss in your leek slices and let them cook slowly for 20-25 minutes. Stir now and then until they turn golden and sweet.
- Add Your Mushrooms
- Throw mushrooms in with those caramelized leeks. Cook until they're golden brown and all their juice has bubbled away, about 8-10 minutes. Sprinkle with thyme, salt, and pepper.
- Make It Saucy
- Splash in the white wine, scraping the pan bottom for all those tasty bits. When the wine cooks down, pour in the heavy cream and let it bubble until it thickens up a bit.
- Pasta Time
- Boil your pasta in salty water until it's still got a little bite. Save a cup of that starchy water before draining. Mix pasta with your sauce, adding splashes of pasta water if it needs loosening up.
- Put It All Together
- Mix in your grated Gruyere until everything's melty and creamy. Scatter fresh parsley on top and maybe some extra cheese if you're feeling fancy.

Keeping It Fresh
You can get the sauce ready a day early and warm it up gently before mixing with fresh pasta. Leftover pasta keeps in the fridge for up to 3 days in a tight container. When you warm it up, add a little splash of heavy cream to bring back that silky smoothness.
Frequently Asked Questions
- → What types of mushrooms work best?
- Although oyster mushrooms are recommended, cremini, button, or chanterelle mushrooms are good options too. Each brings its own unique flavor and texture.
- → Can I prepare this dish in advance?
- You can make the sauce ahead (steps 1-4) and reheat it later. Just toss it with freshly cooked pasta when you're ready. Perfect for planning ahead!
- → Why is pasta water important?
- The starchy water helps make the sauce silky and helps it stick to the pasta better. It's also a quick trick to thin out a sauce if needed.
- → Can I swap out the gruyere cheese?
- If gruyere isn't available, try fontina, raclette, or mild white cheddar. The flavor will change slightly, but it'll still be velvety and delicious.
- → What's the benefit of caramelizing the leeks?
- Caramelizing leeks makes them sweet and enhances their flavor. Adding sugar speeds things up and balances the savory parts of the dish.