In a pan, warm the olive oil and sauté the freshly chopped garlic until it becomes fragrant. Then, add the chopped onions and cook for approximately 2 to 3 minutes.
As the onions begin to change color, sprinkle in some salt and chili flakes, and mix everything well.
Next, incorporate the freshly blended tomato paste and stir it thoroughly.
Continue to stir and cook on low heat until the mixture starts to thicken into a sauce.
Once the sauce has thickened, add sugar and mix it well to ensure all the ingredients are combined.Now, your arrabbiata sauce is ready to be served with pasta.