Five-Spice Grilled Chicken Thighs with Blackberry Glaze

Source:  Cooking Light

1 tablespoon five-spice powder
1/2 teaspoon salt
1/4 teaspoon freshly ground black pepper
8 (3-ounce) skinless, boneless chicken thighs
Cooking spray
3/4 cup sugar-free seedless blackberry jam (such as Smucker's)
3 tablespoons cider vinegar
1 tablespoon water
3/4 teaspoon grated peeled fresh ginger
Fresh blackberries (optional)

Prepare grill. Combine first 3 ingredients in a small bowl. Sprinkle spice mixture evenly over chicken. Place chicken on grill rack coated with cooking spray; cook chicken 6 minutes on each side or until done.  While chicken grills, combine jam and next 3 ingredients in a nonstick skillet. Simmer over medium-low heat 8 minutes or until glaze is reduced to 1/2 cup. Drizzle glaze evenly over chicken; garnish with blackberries, if desired. Serve immediately.