Watermelon-Lime Ice Pops
The thirst-quenching Mexican drink called agua fresca, a mixture of fruit, water, and sugar, is the inspiration for these colorful layered ice pops. Make them on a summer morning and enjoy them in the hot afternoon.
FOR THE WATERMELON LAYER
½ small watermelon, about 2 lb
3 tablespoons superfine sugar
2 tablespoons fresh lime juice
Pinch of salt
¼ cup mini semisweet chocolate chips
FOR THE LIME LAYER
½ teaspoon grated lime zest
2 tablespoons fresh lime juice
2½ tablespoons superfine sugar
1/3 cup water
2 or 3 drops green food coloring
To make the watermelon layer, scoop the flesh from the watermelon and remove any seeds. Chop the watermelon flesh; you should have about 4 cups. Transfer to a blender or food processor, add the sugar, lime juice, and salt, and blend until smooth. Using a spoon, stir in the chocolate chips.
Divide the watermelon mixture evenly among 8-10 ice pop molds, filling them three-fourths full. Freeze until the mixture is partially frozen, about 1 hour.
To make the lime layer, in a clean blender or food processor, combine the lime zest and juice, sugar, and water. Add the green food coloring and blend until smooth. Refrigerate until ready to use.
When the watermelon layer is partially frozen, divide the lime mixture evenly among the ice pop molds, distributing it evenly. If using ice pop sticks, insert them at this point. Cover and freeze ice pops until solid, at least 3 hours or up to 3 days.