If you have a juicer, you can juice part of a pineapple to obtain 1 cup of juice.
Dice a half cup of the pineapple into small chunks.
Alternatively, you can use the juice and pineapple from a can.
Combine pineapple juice, vinegar, maple syrup, tamari, garlic, ginger and turmeric in a pot. Bring to a bowl.
Reduce heat and simmer gently for 3 minutes.
Mix arrowroot starch and cold water in a small bowl.
Add arrowroot starch mixture to the pot. Bring to a boil, reduce heat and boil gently for 1 minute. Add pineapple pieces. Remove from heat and serve.