Ingredients

Makes about 1 1/2 cups

　　1/4 cup cider vinegar

　　1 1/2 teaspoons sugar

　　1/4 cup finely diced sweet onion

　　4 pepperoncini, cored and finely chopped

　　Kosher salt

　　3 ears of corn

　　1 tablespoon of vegetable oil, plus more for brushing

　　Freshly ground pepper

　　1/4 cup finely chopped basil

　　

Step 1

Light a grill and preheat for at least 10 minutes or preheat a grill pan.

　　

Step 2

In a large bowl, whisk the vinegar with the sugar until dissolved. Add the onion, pepperoncini and a pinch of salt and let stand while you grill the corn.

　　

Step 3

Brush the corn with vegetable oil and season with salt and pepper, then grill over moderately high heat, turning frequently until tender and blistered in spots. Let cool slightly, then, using a serrated knife, cut the kernels off the cobs.

　　

Step 4

Add the corn and the 1 tablespoon of oil to the onions and toss; season with salt and pepper. Let the relish stand for at least 15 minutes, stirring occasionally, to let the flavors meld. Add the basil just before serving.

　　Kristin Donnelly