Spicy Mussel Stew with Tomatoes and Basil

Ingredients

• 6 tablespoons extra virgin olive oil
• 1 yellow onion, chopped
• 4 cloves garlic, thinly sliced
• 3 cups tomatoes, peeled, seeded and chopped, fresh or good-quality canned, like Muir Glen
• 1/4 teaspoon crushed red pepper flakes
• Salt and freshly ground black pepper
• 4 pounds mussels, scrubbed and beards removed
• 1 cup dry white wine
• 3 tablespoons capers, rinsed
• 1/2 cup torn basil leaves
• 2 teaspoons fresh chopped flat leaf parsley