Bring a large pan of water to a boil. Add the salt and cook the pasta for 1 minute less than the packet instructions.1 tablespoon salt12 oz pasta

Once cooked, reserve 1½ cups of the pasta cooking liquid and drain the pasta.

Heat the olive oil in a heavy-based skillet over medium-high heat.2 tbsp olive oil

Add the sliced kielbasa and cook over high heat for 2 minutes.14 oz smoked kielbasa

Add the chopped onion and cook for 2 minutes, then add the minced garlic and cook for 30 seconds.1 small onion2 cloves garlic

Sprinkle over the flour and stir to coat the onion and sausage.2 tbsp flour

Slowly add the broth in small amounts, stirring with every addition.1½ cups low sodium chicken broth

Add the cream, oregano, dried thyme, dried chives, and black pepper, then bring to a simmer for 2 minutes.1½ cups half and half/single cream¼ teaspoon dried oregano¼ teaspoon dried thyme¼ teaspoon dried chives¼ teaspoon black pepper

Gradually sprinkle over the shredded cheese and grated parmesan. Stir after each addition until it has all melted. Let the sauce simmer on very low heat until your pasta is cooked.1½ cup cheese½ cup parmesan

Add the drained pasta to the sauce and ½ cup of the reserved cooking water.

Stir the pasta gently until it's coated in the sauce, and cook everything for 1 minute, tossing gently. Add more pasta cooking water if the sauce gets too thick.