Once heated, reduce the stove heat to low. Then, add the minced garlic cloves and the red pepper flakes. Cook for 3-4 minutes, stirring with a wooden spoon periodically so it doesn’t burn.
Increase the stove heat to medium and cook the arrabbiata sauce, while stirring, until slightly sputtering. Then, reduce the heat to low and continue to cook for 10 more minutes.
Note: If the sauce needs to be thinned slightly, you can add a small amount of the reserved pasta water to the sauce until desired consistency is reached.