01 -
Dice the fresh pineapple into small pieces, saving any juice from the cutting board. Smaller pieces make a sauce that clings better.
02 -
Add pineapple, pineapple juice or water, rice vinegar, sugar, soy sauce, chilli paste, garlic, ginger, and red pepper flakes to a small saucepan. Stir well.
03 -
Bring to a gentle simmer over medium heat. Cook for 8-10 minutes, stirring often, until the pineapple softens and the liquid reduces slightly.
04 -
For a chunky sauce, lightly mash some pineapple with a spoon. For a smoother sauce, blend half or all of the mixture, then return it to the pan.
05 -
Mix cornstarch with cold water until smooth. Stir the slurry into the simmering sauce and cook for 1-2 minutes, until glossy and thick enough to coat a spoon.
06 -
Remove from the heat and stir in lime juice. Cool for 5 minutes, then taste and adjust with more chilli paste, vinegar, sugar, or soy sauce as needed.