
1 cup granulated sugar
1 cup water
1 fresh jalapeño pepper, halved lengthwise and seeded*
1 large lime, sliced
4 cups mango nectar
¼ cup fresh lime juice
16 ounces tonic water, for serving
6 key limes, thinly sliced, for garnish
Mango slices, for garnish
*Note: Chile peppers contain volatile oils that can burn your skin and eyes. When working with jalapeño peppers, wear protective gloves.