Cook the spaghetti as per the instruction on the packet. Run them through cold water and keep aside in a bowl.
Heat the oil in a wok. Cook the garlic and onion slices for 3-4min on medium heat. Add the sugar and caramelize the onion-garlic mix.
Add the baby corns, bell peppers and mushroom. Cook them on high heat for 5min. Pour in the soya sauce and simmer for a further 5min. Add the spaghetti to the wok and mix them all well.
Add salt and pound black peppers to taste.