Pour the whole plum tomatoes into a bowl. After cleaning your hands, hand-crush the whole plum tomatoes into a pulp.
Bring a saucepan to medium heat. Add olive oil to the pan. Stir the garlic and calabrian chili peppers in the pan and saute for 1-2 minutes.
Pour in the tomatoes. Season with half a teaspoon of salt and some basil. Simmer for 25 minutes, stirring occasionally.
Stir in a little extra basil in the last 5 minutes. Taste the sauce and add another half teaspoon of salt if necessary. Then stir in the parmesan.
Now you can serve it with pasta or a sandwich.
Video
Notes
Hand-crush your tomatoes for a more rustic chunky tomato sauce, or use an immersion blender to blend it into a smooth sauce. Smooth sauce works better with sandwiches, while a chunky sauce is great with pasta.
Calabrian chili peppers can be really spicy, so adjust according to your tolerance for heat.
Add grated parmesan to make the sauce slightly creamier and offset the acidity of the Calabrian chili peppers.