Dice chicken breast into bite size pieces. Season with your favorite seasonings. Sauté in hot skillet until fully cooked.
In a large frying pan, heat the olive oil. Sauté the onion until it's soft. Mince the garlic into the pan and cook 1 minute.
Add tomato paste. Whisk until it's a little bit caramelized.
Whisk in the heavy cream and vodka until fully blended into the sauce. Add pepper flakes. Season with salt and pepper if using.
Cover. Simmer on low while you boil the pasta.
Before draining the pasta, save ½ cup of the pasta water.
Stir the butter into the pasta. Add the pasta to the sauce. Add a few splashes of the pasta water to desired consistency. You probably won't use the entire ½ cup.
Serve topped with fresh basil and grated parmesan cheese.