Grilled Rub-Down Chicken with Black Bean & Corn Salsa

Ingredients

• 1½ c. fresh or frozen corn kernels (from about 1 ear of corn)
• Fresh lemon juice (from about 1 lemon)
• 2 Tbs. olive oil
• 1 (15-oz.) can black beans, drained and rinsed
• 1 c. peeled and chopped jicama (about 8 oz.)
• 2 plum tomatoes, cored, seeded and chopped
• 2 scallions, light green and white parts only, finely chopped
• ¼ c. finely chopped fresh parsley leaves
• Salt
• freshly ground pepper
• ¼ c. light or dark brown sugar
• 1 Tbsp. ground allspice
• 2 tsp. garlic powder (or 3 garlic cloves, finely minced)
• 1/8 tsp. cayenne pepper, or more to taste
• Boneless, skinless chicken breasts halves trimmed of excess fat, rinsed and patted dry
• 1½ c. canola or vegetable oil