Add oil and onion and garlic saute on low heat until onion is clear and never brown your garlic you lose the flavor !

In another pot bring water to a boil with tsp of salt and a little oil for the angle hair

To the garlic and onion now add the tomato paste and crushed tomatoes

Stir in the crushed red pepper flakes and basil and the sugar

Now add your shrimp cook until your is done. Caution do not over cook your shrimp as it will become to chewy

Enjoy with a little parmesan cheese and garlic bread