Shrimp Fra Diavolo (Shrimp and Pasta with Spicy Tomato Sauce) Recipe

Name: Shrimp Fra Diavolo (Shrimp and Pasta with Spicy Tomato Sauce) Recipe
Total time: 30 min
Yield: 4
Ingredients: 1/2 teaspoon kosher salt, plus more as needed; 3/4 pound large shrimp (340g), shelled and deveined, shells reserved; Large pinch baking soda; 6 tablespoons extra-virgin olive oil (90ml), divided; 4 medium cloves garlic, thinly sliced; 1 1/2 teaspoons dried oregano; 1 to 2 teaspoons red chile flakes (see note); 2 tablespoons (30ml) brandy (optional); 1 (28-ounce; 795g) can whole peeled tomatoes and their juices, coarsely pureed or crushed by hand; 1/2 cup bottled clam juice (120ml); 1 pound spaghetti (450g); 1/4 cup minced flat-leaf parsley leaves and tender stems (from 1 small bunch)