Put a pan of salted water onto the hob and bring it to the boil. When ready, pop in the pasta (perfect amount of time for you to chop your onion and crush your garlic). 

Put a frying pan on a medium heat. Add the oil, onion and garlic. Cook until translucent.

Add the tomatoes. Cook until bubbling. If using a cheaper brand, you may wish to cook away some of the liquid. 

Add the mascarpone. Stir and bring to a gentle bubble. 

Add in the basil, stir and check the seasoning. Add salt/pepper as required. Then leave on a low heat/turn it off. 

Your pasta should be done by now - if you've not already done so, strain. 

Add the pasta to the sauce, stir until the pasta is coated. Serve, top with Parmesan as required.