- 2 cups pineapple juice, divided
- 3 tablespoons cornstarch
- 1 cup white sugar
- 3/4 cup ketchup, or more to taste
- 2/3 cup apple cider vinegar
- 2 tablespoons soy sauce, or more to taste
- 2 tablespoons crushed pineapple, or more to taste (optional)
- 1 teaspoon garlic powder
- Whisk 1/4 cup pineapple juice and cornstarch together in a small bowl until smooth.
- Combine cornstarch mixture, remaining 1 3/4 cup pineapple juice, sugar, ketchup, vinegar, soy sauce, crushed pineapple, and garlic powder in a large pot over high heat. Cook, stirring frequently, until sauce comes to a gentle boil. Reduce heat and continue to simmer until sauce is clear and reaches desired consistency, 15 to 25 minutes.