Agua fresca with cucumber and lime
3-5 whole cucumbers, coarsely chopped (not peeled or seeded)
1/2 cup fresh lime juice
1/2 serrano chile, seeded and minced (or more to taste)
1/8 cup agave syrup
In a blender, in batches, purée the cucumbers with 2 1/4 cups of water, the lime juice, chile, agave syrup and a generous pinch of sea salt on high speed. Strain through a fine-mesh strainer lined with a triple layer of cheesecloth (or use a chinois), discarding the solids. Serve over ice. Keeps 2 days, refrigerated.