Heat pan on medium high heat
Add olive oil, yellow onion, garlic and tomato paste. Let cook until onions are translucent.
Add heavy cream and spices. Let simmer. Set aside
Boil pasta water then add pasta to pot
Cook pasta and strain once finished. Save 1/2 cup of pasta water for sauce.
Add pasta and 1/2 cup pasta water to sauce pan.
Add 1 cup Parmesan cheese and 2 tbsp of butter
Stir until butter and cheese is melted