Bring a pot of salted water to the boil and add the pasta. Cook according to packet instructions.
While the pasta cooks heat the oil in a frying pan over a medium heat, add the garlic and chilli and cook for a couple of minutes then add the tomatoes, vinegar and sugar, season well. Bring to a simmer and cook for 5 minutes until thickened slightly.
Remove the pan from the heat. Reserve 3-4 tbsp pasta water and drain the pasta. Add the cooked pasta, capers and salmon to the sauce and toss well. Add enough pasta water until you reach your desired consistency and toss again. Serve topped with fresh parsley and parmesan if desired.
Nutrition information is an estimate and will vary depending on the ingredients used.