Bring a large pot of water to boil over high heat. Add tomatoes, and boil 1 minute. Drain and put tomatoes in a large bowl of ice cold water. Once cool, peel tomatoes. Then cut core out and chop them into small pieces. Add tomatoes to medium size saucepan along with sugar, apple cider vinegar, orange zest, orange juice, grated ginger, salt, ground coriander and 5 whole cloves.