Heat sesame oil in a claypot. Saute the ginger garlic paste, onion, jalapeno pepper and pork for 2 minutes. Add the sugar, soy sauce and vinegar. Cover with a lid and simmer on low heat for 40 minutes. Add carrot and tomato ketchup. Cover and simmer for another 30 minutes.

Combine cornflour and water in a small bowl and stir to form a smooth mixture. Add this to the claypot and stir well. Garnish with some freshly ground black pepper and spring onions.