Step 1

Place the vinegar, sugar, jalapeno, salt and lime juice in a small sauce pot. Bring to a simmer stir until sugar dissolves, remove from heat and let cool to room temperature.

Step 2

Place the pineapple and cilantro into a large jar.

Step 3

Pour the vinegar mixture over the pineapple, it should just cover the top slice.

Step 4

Seal and refrigerate at least 1 day before eating.

Step 5

Store in the refrigerator for up to 2 weeks. Pineapple will become more tangy with time.