Bring a large pot of water to a boil. Once the water is boiling, salt it liberally and boil pasta until al dente.
1 lb Rigatoni pasta
Add the diced pancetta to a large, cold skillet. Turn the heat to medium, and let the pancetta fat render while the meat crisps.
4 oz Pancetta
Remove the crisp pancetta and drain on a paper towel-lined plate.
Add the whole grape tomatoes to the same skillet with the remaining pancetta fat. Once the tomatoes have started to burst, add the minced garlic and saute for 1 minute.
1 pint Grape tomatoes, 2 cloves Garlic
Add the tomato paste and chilies to the skillet, and let them cook through for 1-3 minutes until you start to see the oils come out.
¼ cup Tomato paste, 1 ½ tablespoon Calabrian chilies
Turn the heat to medium-low, and carefully pour the vodka into the tomato paste mixture, and mix to combine.
⅓ cup Vodka
Finish the sauce with heavy cream, and salted butter. Mix until the butter is melted and the sauce is silky.
½ cup Heavy cream, 1 tablespoon Salted butter
Transfer the boiled pasta to the skillet with the sauce. Toss well until the pasta is fully covered in the sauce.
Top the pasta with the crisp pancetta before serving.