Pennette Rigate Arrabbiata, a traditional Italian recipe, is of Italy's "cibo povero" or peasant food origins and as such consists of very simple ingredients: the pasta, traditionally a Penne, garlic, peeled red pepper and parsley with a little pecorino romano. The spice in this dish comes from the Calabrian chili, a versatile smoky pepper from southern Italy which packs the perfect amount of heat.
Infuse garlic with red pepper flakes and olive oil over medium heat for a couple of minutes. Add crushed tomatoes, 1 cup of water, and sea salt. Simmer for 15 minutes.
Drain pasta and toss with sauce. Finish with parsley and cheese [optional].