Once you get the hang of making basic tomato sauce, you can improvise by adding bacon ... 1/4 tsp salt, 160 grams spaghetti, 5 “shiso” leaves 1. Finely chop garlic and onion.
If you have any fresh herbs to hand, such as parsley, basil or dill, finely chop and add to the sauce at the same time as the pasta. You can also stir in dried chilli flakes, sliced fresh chilli ...