# What You'll Need:
→ Pasta
01 - 12 oz fettuccine or wide egg noodles
02 - Salt for boiling water
→ Mushrooms and Vegetables
03 - 1 lb mixed mushrooms (cremini, shiitake, or button), sliced
04 - 1 medium yellow onion, finely chopped
05 - 2 cloves garlic, minced
06 - 2 tablespoons olive oil
07 - 1 tablespoon unsalted butter
→ Sauce
08 - 1 tablespoon white miso paste
09 - 1 tablespoon soy sauce
10 - 1 teaspoon Dijon mustard
11 - 2/3 cup vegetable broth
12 - 3/4 cup plus 2 tablespoons sour cream or crème fraîche
13 - 1 teaspoon smoked paprika
14 - 1/2 teaspoon black pepper
15 - Salt to taste
→ Garnish
16 - 2 tablespoons fresh parsley, chopped
17 - Freshly ground black pepper for serving
# Directions:
01 - Bring a large pot of salted water to boil. Add fettuccine and cook according to package instructions until al dente. Drain and reserve 1/2 cup pasta water. Set aside.
02 - While pasta cooks, heat olive oil and butter in a large skillet over medium-high heat. Add chopped onions and sauté for 3-4 minutes until translucent.
03 - Add minced garlic and cook for 1 minute, then stir in sliced mushrooms. Sauté for 7-8 minutes, stirring occasionally, until mushrooms are browned and have released their moisture.
04 - Lower heat to medium. Stir in white miso paste, soy sauce, and Dijon mustard, mixing well to coat the mushrooms evenly.
05 - Pour in vegetable broth and sprinkle smoked paprika over the mixture. Scrape up any browned bits from the bottom of the skillet. Simmer for 2-3 minutes.
06 - Reduce heat to low. Add sour cream and stir gently until the sauce is smooth and creamy. Do not allow the mixture to boil.
07 - Toss the cooked pasta into the skillet with the mushroom sauce, adding reserved pasta water as needed to achieve a silky consistency. Season with black pepper and salt to taste.
08 - Transfer to serving dishes immediately. Garnish with fresh parsley and additional freshly ground black pepper.