Blend pineapple, sugar, water, and lime juice until smooth. Scrape down the sides as needed.

Stir in chopped mint. Taste and add 1 tablespoon more sugar if too tart.

Pour mixture into a shallow metal pan. Spread it thin so it freezes fast.

Freeze 30 minutes, then scrape with a fork to loosen crystals.

Repeat scraping every 30 minutes, three to four times, until flaky and frozen.

Serve in small bowls and top with a mint leaf.