1-Gather and measure all ingredients, ensuring fresh produce and accurate quantities for a consistent result. This includes 1 cup pineapple juice, 3/4 cup brown sugar, 1/3 cup rice vinegar, 3 tablespoons ketchup, 2 tablespoons soy sauce, and the cornstarch slurry.

2-Combine pineapple juice, brown sugar, vinegar, ketchup, and soy sauce in a small saucepan. Bring to a boil over medium heat, stirring until everything blends smoothly.

3-Stir in the cornstarch slurry 1 1/2 tablespoons cornstarch mixed with 2 tablespoons water. Simmer for 1 minute, stirring constantly, until the sauce thickens to your liking.

4-Optional: Add 2-3 drops of red food coloring or a natural alternative like beet juice for a vibrant look, though this only affects appearance.

5-Remove from heat and allow the sauce to cool completely before using. Store it in an airtight container in the refrigerator for up to 2-3 weeks as per the directions.