This tagliatelle pasta dish is anything but ordinary. Al dente noodles are tossed in a creamy sauce brightened with lemon and fresh tarragon, then paired with tender sliced mushrooms. A few cloves of garlic add depth and a touch of warmth, making this a comforting meal any night of the week.
The sauce comes together quickly using sour cream and veggie stock concentrate, creating a rich coating for the pasta. With a sprinkle of Parmesan and a final flourish of tarragon, each bite is savory, herbaceous and satisfying. Ready in under 30 minutes, it’s perfect for a busy weeknight.
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Recipe details
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Ingredients
Instructions
- Wash and dry all produce. Bring a large pot of salted water to a boil. Halve, peel and finely chop the onion. Mince or grate the garlic. Pick the tarragon leaves from the stems and finely chop. Halve the lemon. Thinly slice the mushrooms.
- Once the water is boiling, add the tagliatelle and cook until al dente, 9-11 minutes. Drain, reserving ½ cup of the pasta cooking water.
- Meanwhile, heat a drizzle of olive oil in a large pan over medium heat. Add the onion and season with salt and pepper. Cook, tossing, until softened, about 5 minutes. Add the garlic and mushrooms, season again and cook until the mushrooms are tender, about 5 minutes more.
- Add the stock concentrates, reserved pasta water and half of the tarragon to the pan. Let simmer until slightly reduced, about 3 minutes. Stir in the sour cream and cook until the sauce thickens slightly, about 3 minutes more.
- Add the cooked tagliatelle, a squeeze of lemon juice and half of the Parmesan to the pan. Toss to combine. Season with salt and pepper to taste.
- Divide the pasta and mushrooms between plates. Sprinkle with the remaining Parmesan and tarragon (to taste). Serve immediately.
Recipe Tips
Reserve extra pasta water if you prefer a thinner sauce.
For a vegetarian version, ensure the Parmesan is made with vegetarian rennet.
Fresh tarragon is key; dried tarragon won’t provide the same flavor.
FAQ
Can I use a different pasta shape?
Yes, fettuccine or pappardelle work well as substitutes.
Can I make this dairy-free?
Use dairy-free sour cream and omit the Parmesan or use a vegan alternative.
How do I store leftovers?
Store in an airtight container in the refrigerator for up to 3 days. Reheat gently with a splash of water or milk.

























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