Fill an 8-quart stock pot with water to 3/4 full. Bring to boil, add 1 tablespoon salt and 1 tablespoon olive oil, and pasta. Cook until al dente.
While pasta is cooking, add 2 tablespoons of olive oil to large fry pan. When pasta is five minutes away from being done, heat fry pan on medium.
Once pasta is al dente, add garlic and crushed pepper to the heated fry pan and toss for about 30 seconds - and then add pasta, directly from the water, to the pan. Carefully toss until coated with olive oil. Add more if needed.
Season with salt, pepper and 3/4 of the fresh parsley. Taste and add more seasoning if needed. Add reserved pasta water, 2 tablespoons at a time, until all ingredients are combined, moist and steaming hot.
To serve, add to individual plates with plenty of grated cheese and additional red pepper flakes if desired. Garnish with fresh parsley.
Enjoy!