1 pineapple, trimmed, peeled, cored, and cut into chunks
1⁄4 cup lime juice
1. Create a simple syrup by placing sugar and 1 1⁄2 cups water into a small pot and boiling until the sugar dissolves. Let syrup cool, then chill in the refrigerator. Purée pineapple in a food processor, transfer to a bowl, cover, and refrigerate until cold.
2. Combine simple syrup, 2 cups of the pineapple purée, and lime juice in a bowl. Process mixture in an ice cream maker according to manufacturer's directions.