First prepare the spaghetti. Boil them, rinse and pour them lightly with sesame sunflower oil, to prevent sticking. Then mix the soy sauce, ketchup and the cornmeal and mix well. Pour 200 ml lukewarm water and leave for a while. In a hot pan put 2 tbsp olive oil. Fry garlic, along with grated ginger. Add chopped in large pieces chili peppers and shrimp. Amplify a little fire and pour the sauce. After about half a minute Pour prepared shi noodles and stir everything. Finally add little lemon juice or lime juice and green onions to taste. To finish sprinkle of fresh coriander.