Savor summer with zesty guacamole

Summer is slipping through my grasp like a rope in gym class, but I refuse to let go before savoring a few more dishes that celebrate the season's local produce. Here's a recipe for a zesty, citrus-scented Grilled Corn and Cotija Guacamole that hides sweet kernels of juicy corn, cubes of meaty tomato and chewy nuggets of salty cheese all within a blanket of creamy avocado.