Ingredients

10 ounces fresh sweet cherries, such as Bing, pitted (2 cups) 

10 ounces fresh or thawed frozen sour cherries, pitted (1 1/2 cups) 

1 cup sugar 

1 teaspoon grated lime zest, plus 1 1/2 cups fresh juice (from about 12 limes), and thinly sliced lime wheels for serving 

6 cups chilled seltzer (48 ounces) 

Preparation

Combine cherries, sugar, zest, and juice. Let stand, stirring occasionally, until sugar is dissolved and flavors are melded, at least 1 hour or, refrigerated in an airtight container, up to 2 days. Combine cherry mixture and seltzer in a large pitcher. Serve over ice, garnished with lime wheels.