Heat the oil in a pan and fry the onions until golden, then tip in the garlic powder and garlic cloves, and cook for a few minutes. Stir in the tomato purée, oregano and paprika, then pour in the chicken stock and bring to the boil. Add the pork and stir through any sauce that comes with it. Simmer for 1 hr-1 hr 15 mins until reduced, adding the peppers and chilli 10 mins before the end. Take off the heat and shred the pork through the sauce, then stir through the mustard and set aside.

Heat the hot dogs following pack instructions. When ready to serve, lay a dog in each bun, spoon over the pork, zigzag over soured cream and mustard, then finish with the shallots and mustard seeds.