Peel and finely chop the garlic and ginger. Clean the chilli, cut lengthwise, remove seeds, wash and cut into fine rings. Mix garlic, ginger, chilli, 2 tbsp. soy sauce, 3 tbsp. sherry, 1 tsp. salt and 1 tsp. five-spice powder.
Preheat oven (electric cooker: 175 °C/circulating air: 150 °C/gas: see manufacturer). Coat the fat pan (deep baking tray) with oil. Wash and dab dry the meat, cut the rind. Coat the meat side with the seasoning mix and place on the fat pan with the meat side down.
Rub the rind with 1-2 teaspoons of aniseed and about 1 teaspoon of salt. Roast in the hot oven on the second rack from below for approx. 2 1⁄2 hours.
Peel, wash and roughly chop the carrots. Onions peel, quarter. Add carrots and onions about 1 1⁄2 hours before the end of the frying time. Approx. 1 hour before the end of the frying time, pour on 100 ml sherry and 1⁄2 l water and finish frying.
Mix honey, 2 tablespoons sherry and 1 tablespoon soy sauce. Remove the roast, lift it out of the roasting set. Loosen rind and place in an ovenproof dish. Cut off layer of fat from the roast. Put the roast back on the fat pan and brush with honey mix.
Increase oven temperature (electric cooker: 225 °C/circulating air: 200 °C/gas: see manufacturer). Fry topside for 20-30 minutes until golden brown. Remove, lift out of the roasting set and let rest for about 10 minutes.
Prepare the sauce. Preheat the grill and fry the rind underneath for about 3 minutes until it begins to bubble. Take it out immediately. Cut the roast thinly. Serve with sauce. Crumble the rind over it.