Preheat grill. Brush the blanched corn with oil and season with salt and pepper to taste. Grill until slightly charred on all sides, about 2 minutes. Remove from the grill and with a sharp knife, scrape the kernels into a medium bowl.
Combine the vinegar, mustard, and garlic in a large bowl and slowly whisk in the remaining 1/2 cup of olive oil until emulsified. Add the corn kernels, bell peppers, onion, tomatoes, jalapeno, and chives, and toss to coat with the dressing. Season with salt and pepper.
Copyright 1999 by Bobby Flay. All rights reserved.