Take a pot and start boiling water for the spaghetti and when it is boiling pour them in adding some salt.
Then chop the onion into small pieces, take a pan and pour in the olive oil and the finely chopped garlic and fry them for 2-3 minutes, then add the sauce and the warm water and put the heat on a medium temperature.
In the meanwhile if the spaghetti is done put them in a colander and then place them on a large bowl. Then take a pan and pour in the frying oil and fry the chicken legs, until they are done.
Then remove the sauce from the heat and pour it in the bowl with the spaghetti, after that, carefully remove the meat from the chicken legs and pour it in the bowl with the sauce and the spaghetti and mix well to distribute the meat everywhere, serve the food when it is warm.