If using canned pineapple add the pineapple juice if the tofu is absorbing all the liquid. (meatfreemondays.com)
Though this recipe is fantastic with fresh pineapple, making it with canned pineapple chunks allows it to be enjoyed during the months that pineapple isn't in season. (freshlyzested.com)
Also, could pineapple juice from canned pineapple (in natural juices) be substituted for the preserve? (realfoodkosher.com)