Gammon is the main star of the whole show in the Finnish Christmas table (nothing of course is stopping anyone cooking it other times too). The original one would be gray in colour instead of the pink in the picture, but unfortunately I’ve not been successful in finding a gray salted one in the UK yet. For the pink version, nitrate is added. It acts as a preservative, and gives the pink colour, however it’s considered to be pretty unhealthy. In the gray version, nitrate isn’t added. The key to getting a juicy piece of meat, as anyone practicing slow cooking of roasts already knows, is to cook the gammon at a very low temperature, for a very long time. It then gets taken out of the oven and cooled, coated and put back for a very high temperature for a short period of time. Traditionally, on the Christmas table the gammon is served cold. I tend to cook it the day before, and on the day of cooking have it also for dinner served warm. It’s perfectly fine to serve it both ways, which ever you would prefer.
1. Take the gammon into room temperature. Dry with kitchen tissue. I would recommend putting it in a roasting bag. Cut a small hole at one corner. Put a roasting thermometer in the cold meat, so that the tip is at the thickest part. If your meat has a bone take care not to touch the bone with the thermometer. The ideal inside temperature of the meat for putting it in the oven is 10°C / 50°F.
2. Place some water at the bottom of an oven pan. Heat the oven to 100°C (fan) / 210°F. The aim is to achieve inside temperature of the meat of 77°C – 80°C / 171°F – 176°F. I tend to try to get to the lower end, for juicier result.
3. Remove from the oven. Cut the bag off, as well as any strings or net around the meat. Let cool on a rack for half an hour to an hour. After this, Remove the skin, and most of the fat.
4. Coat with mustard, and breadcrumbs.
5. Heat the oven to 250°C / 480°F, and cook the gammon for 10 minutes.