1 lb. Pappardelle's Caramelized Leek & Garlic Tagliatelle
2 medium leeks (white & light green parts only), thinly sliced
8 oz. cremini or portabella mushrooms, sliced
2 Tbsp. extra-virgin olive oil
3 cloves garlic, minced
1/2 cup chicken stock (or vegetable stock for vegetarian)
1 cup heavy cream
1 cup gruyere cheese, grated
Fresh parsley, for garnish
Salt & pepper, to taste