In a large pot of boiling water, add 1 tablespoon of salt and cook the pasta until al dente. Once cooked, reserve 1 cup of the pasta water, then proceed with strained the pasta.
While the pasta is cooking, start preparing the sauce.
Place a large skillet over medium heat. Drizzle the olive oil in the pan and cook the prepared shallot and garlic. Season with the 1 teaspoon of salt and cook for 2-3 minutes.
Pour the chicken broth in the skillet to deglaze it. Add the heavy cream, pumpkin puree and ½ cup of the reserved pasta water. Simmer the sauce for 5 minutes.
Turn the heat off and add the strained pasta into the sauce. Stir to cover the pasta in the sauce. If the sauce is too thick to your liking, you may add more of the reserved pasta water.
Serve the the pasta with the optional toasted pecans, parsley, and parmesan.
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Notes
Serve this dish as a side or add your favorite protein (cooked chicken) to make it a complete dish.