When oil is hot, add onion, garlic, and red pepper flakes; sauté for 1-2 minutes.
Now add tomatoes, tomato sauce, and tomato paste. Using the back of your spoon, gently break up the tomatoes.
Add in remaining spices and toss in the bunch of fresh basil (Do not chop this up as we are leaving it in to flavor the sauce, but will be removing it later)
Reduce heat and simmer for 30-40 minutes.
Serve immediately or transfer to a jar to store in the fridge for up to 5 days.