Chicken Paprikash With Buttered Egg Noodles

Ingredients

• sour cream
• pounds bone-in, skin-on chicken thighs
• Kosher salt and freshly ground black pepper
• large yellow onion
• garlic cloves
• tablespoons unsalted butter, divided
• tablespoons paprika
• teaspoon cayenne pepper
• ounce can crushed tomatoes
• ounces egg noodles
• parsley leaves with tender stems