In a large pot or dutch oven on medium heat, add olive oil. When hot, add garlic and stir until fragrant. Add in the tomato puree and tomato paste
Season the sauce with the red chili flakes, oregano, salt and pepper. Let simmer for about 30 minutes. In the meantime, bring a large pot with salted water to a boil.
Add in olives, basil and sugar to the sauce and simmer for another 5-10 minutes. Add yoru dried pasta to the boiling water and cook until al dente (follow the instructions on your box of pasta). When the pasta is cooked, drain and add into the sauce and mix until pasta is evenly coated with the sauce... then serve!