Make this recipe a recipe that people in that category can eat. categories: ['low_fat'], recipe: mix cornstarch in cold water to dissolve. mix first six ingredients in a sauce pan and bring to a boil. add the cornstarch and water and stir until mixture returns to a boil. continue stirring over medium heat until mixture thickens and becomes semi-glossy.

Target recipe: drain pineapple, reserving juice from pineapple. in a medium saucepan, combine sugar, can of tomatoes, onion, soy sauce, ginger and pineapple; simmer for 20 minutes. in a small bowl, combine cornstarch and reserved pineapple juice; stir till smooth. add to the cooked pineapple mixture when mixture is done cooking. bring to a boil and cook for about 2 minutes or till slightly thickened,remove from heat and cool. refrigerate till cold.