Spicy Linguine with Clams and Mussels

INGREDIENTS

1 lb

linguine pasta

2 tbsp

unsalted butter, at room temperature

1/4 cup

chopped fresh flat-leaf parsley

Kosher salt and freshly ground black pepper

3 tbsp

olive oil

large or 4 small shallots, sliced

2 tsp

Kosher salt, for seasoning, plus

1 tsp

Freshly ground black pepper, for seasoning, plus

3 cloves

garlic, minced

1 cup

white wine (recommended: Pinot Grigio)

1 cup

vegetable broth

1/2 tsp

crushed red pepper flakes

littleneck clams, cleaned

mussels, cleaned