Directions on how to cook chicken on the grill: step 1: season 1 lb. chicken with 1/2 tsp. season salt, 1/2 tsp garlic powder, and 1/2 tsp pepper. step 2: place all chicken on preheated 450 degree bottom grill rack and cook for 25 minutes. step 3: rub bbq sauce all over chicken and let cook on both sides 5 to 10 more minutes.