01 -
1 lb fettuccine.
02 -
2 tablespoons olive oil.
03 -
3 tablespoons butter (use separately).
04 -
4 garlic cloves, finely chopped.
05 -
3 leeks, medium-sized, tops removed, halved, and finely sliced.
06 -
2 sage leaves, fresh.
07 -
¾ cup thick heavy cream.
08 -
⅓ cup dry sherry wine.
09 -
1 tablespoon balsamic vinegar.
10 -
½ cup gruyere cheese, grated.
11 -
¼ cup toasted pine nuts.
12 -
½ teaspoon regular salt.
13 -
1 teaspoon lemon zest.
14 -
½ teaspoon sugar (granulated).
15 -
8 ounces oyster mushrooms.
16 -
1 teaspoon cracked black pepper.
17 -
1 cup pasta water (saved).