when the water is boiling, put in some salt and the penne, cook til nearly al dente

chop the garlics and onion finely

drizzle some oil in a deep pan, stir fry the garlic and onion til fragrant

put in slices of sausages, tomato paste, 2 cans of tomato, some basil

seasoning with salt and pepper and a pinch of sugar for the richness, cook on medium heat for 10 minutes

put the penne in the sauce pan, stir it, cook for another 5 minutes

turn off the heat, serve in a big bowl