Add 2 or 3 tablespoons of hot water which you can add now or later. I added it just after the noodles finished cooking so that the sauce would be hotter going in
Boil 200 grams/7 ounces noodles. I used a bit less because I like my noodles drowning in sauce. That's also the reason I used more of all the other ingredients.
Notes
I made it once without the sugar and it was still good.