SausagesVienna Sausage, Strassbourg Sausage, St.Johanner or White Münich Sausage. (I found some sausage resembling Frankfurter here in Goa called Deutsch Frank)
Boil the pasta first by keeping a pot with Salt Water to boil. Add the pasta only when the water is boiling and do not cover! (I am pointing the finger at my brother here). You can boil the Sausage with the Spaghetti together or you can fry the Sausage separately, that's up to you. Once the sausages are cooked, slice them and at them to the sauce and pasta later on while serving.
Chop your Onion very fine, add some olive oil to the pot and fry the Onion translucent. Then add the Curry spice mixture and stir fry for a minute.
Pour in the Tomato paste at this point, together with the Ketchup and stir fry for a minute. Pour 100 milliliter of the water into the pot and stir well. Keep the other 100 milliliter of water at the side for the end.
Throw in the Balsamic Vinegar, the Paprika powder, salt, pepper, honey and soy sauce. Stir and cook for 3 minutes and pour in the remaining of 100 milliliter.
Cook for approximately 10 minutes or until the sauce thickens. Garnish the pasta, sauce and sausage pieces with chopped chives.
Notes
The Currywurst Sausage pasta sauce was adapted and inspired from here => http://petrafoede.de/blog/wp-content/uploads/2010/09/spaghetti-mit-currywurst.jpg