Spicy Steamed Mussels

Name: Spicy Steamed Mussels
Ingredients: 2 tablespoons unsalted butter; 3 cloves garlic, chopped; 2 small Fresno or jalapeño chiles, thinly sliced, divided; ¼ teaspoon kosher salt; ⅛ teaspoon black pepper; 2 pounds fresh mussels, scrubbed and debearded; ¾ cup dry white wine; ¼ cup chicken broth; 2 tablespoons chopped fresh flat-leaf parsley; Toasted rustic bread, for serving