Peel ginger and garlic, chop coarsely. Wash the chillies and chop finely. Onions peel, halve and roughly dice. Heat the oil in a large pot. Sauté onions, chillies, ginger and garlic for about 2 minutes, dust with 3 tbsp. sugar and caramelize while stirring. Add vinegar, cola, ketchup, honey, tabasco, Worcestershire sauce and Teriyaki sauce and 85 g sugar, season with salt and paprika powder and simmer over low heat for about 20 minutes, stirring occasionally.
Finely puree the sauce with a hand blender and pass through a sieve. Bring to the boil again briefly, season to taste with salt and cayenne pepper. Pour the sauce into a clean bottle (approx. 750 ml capacity), close tightly and allow to cool. Keeps in the refrigerator for 2-3 weeks.