Follow these detailed steps to create a delicious serving of Spicy Penne Arrabbiata:

1. Cook the Pasta: In a large pot, boil salted water and add the penne pasta. Cook according to package instructions until al dente. Drain and set aside.

1. Prepare the Sauce Base: In a large skillet, heat the olive oil over medium heat. Add the minced garlic and sauté until fragrant, about 1-2 minutes. Be careful not to let it brown.

1. Add Heat: Stir in the red chili flakes and cook for an additional 30 seconds, allowing the flavors to meld.

1. Incorporate Tomatoes: Pour in the crushed tomatoes, stirring to combine. Season with salt and pepper to taste. Bring the mixture to a simmer.

1. Simmer the Sauce: Reduce the heat and let the sauce simmer for about 10-15 minutes, stirring occasionally. This allows the flavors to intensify.

1. Combine Pasta and Sauce: Add the drained penne pasta to the skillet, tossing to coat the noodles evenly in the sauce.

1. Adjust Seasoning: Taste and adjust the seasoning if needed, adding more salt or chili flakes based on your heat preference.

1. Serve: Once well combined, remove from heat and plate the pasta.

1. Garnish: Sprinkle with fresh parsley and add grated Parmesan cheese if desired for extra flavor.

These simple steps will guide you to create a sensational Spicy Penne Arrabbiata that is as pleasing to the eye as it is to the palate!