This delicious centerpiece of a holiday meal is ready in record time. Serve it with potatoes or a vegetable gratin.INSTRUCTIONS Place your gammon into the Inner pot on top of the trivet provided. Add the onions, carrots and spices. Pour ginger beer over the gammon, then top up the liquid to the max level with water. Pressure Cook on High for 1 Minute When the time is up, let the pressure naturally release. Leave the gammon to completely cool in the liquid overnight (7-8 hours). When ready to glaze, pour ginger beer into a pan and heat until the ginger beer has reduce by 70%, into a sticky glaze. Add the reduced ginger beer into a bowl with the Dijon mustard, and mix until combined. Set aside. Heat the oven to 220°C / 428°F. Remove the gammon from the cooking liquor. Gently remove the hard skin, leaving a nice white fatty layer on the gammon. Score the gammon at half centimeter intervals, then place the gammon in a roasting dish. Brush the gammon in the ginger and mustard glaze then place in the oven and cook until the fat is browned, and the gammon is sticky and glazed. Every 5 minutes remove the gammon and reapply the glaze the fat and sides. Once cooked, cover in a tent of foil and allow to rest in a warm spot for 15 Minutes. Then carve and serve immediately.