Cook the Book: Shrimp Biryani

Name: Cook the Book: Shrimp Biryani
Ingredients: 2 cups basmati rice; 1 pound medium shrimp, shelled and deveined; 1 teaspoon salt; 1/2 teaspoon ground turmeric; One 1-inch piece ginger; 4 large garlic cloves; 1/4 bunch cilantro; 2 serrano chiles; 4 tablespoons neutral oil, such as vegetable or canola; 1 teaspoon whole black peppercorns; One 1 1/2-inch cinnamon stick; 1/2 teaspoon whole cloves; 10 whole green cardamom pods; 2 bay leaves; 1 large yellow onion, chopped; Salt; 2 tablespoons unsalted butter; 2 mint sprigs, chopped