Quick Pumpkin Rigatoni with Candied Prosciutto and Walnuts

Bahan-bahan (6 porsi)

• 3 ounces prosciutto, torn
• 1 cup roughly chopped walnuts
• 1 teaspoon brown sugar
• 1/2 teaspoon cayenne pepper, or to taste
• 2 tablespoons chopped fresh rosemary
• 3 tablespoons salted butter
• 2 tablespoons chopped fresh sage
• 1 shallot, chopped
• 4 cloves garlic, chopped
• 1 -2 teaspoons chili flakes
• 1/2 cup dry white wine or broth
• 1 cup canned pumpkin puree
• kosher salt and black pepper
• 1 cup heavy cream or whole milk
• 1 pound dry short cut pasta, such as rigatoni
• 1 cup grated parmesan cheese