Prepare penne according to the instructions on the package.
Add the chicken stock and Norcia base in a large skillet over medium heat. Stir frequently until hot, about 6-8 minutes. Transfer to a large mixing bowl. Add reserved pasta water and hot penne pasta and combine thoroughly.
Divide among 6-8 serving bowls and finish each with extra virgin olive oil and grated cheese as desired.
Heat olive oil. Add onions and cook until soft, about 6-8 minutes, being careful not to brown them.
Add Italian sausage and cook until all the sausage is browned. Drain excess fat.
Add tomato paste to the pan surface and stir 4-5 minutes to caramelize the paste. Return sausage and onion mixture to pan and stir into the paste.
Add the wine and reduce until nearly dry, stirring frequently.
In a separate pan, heat the stock and milk, then add heated mixture to the sausage mixture. Reduce until still moist, not completely dry.
Stir in crushed red pepper and remove from heat.
Yield: 5 cups