Few things seem easier than grilling a skinless, boneless chicken breast. However, grilling a tender, juicy, and flavorful chicken breast can actually be a challenge. Without the chicken's protective skin and because of the uneven thickness, you frequently end up with a dry piece of meat by the time it's done. Don’t despair. There are a few things you can do to keep this from happening. Pounding the chicken breast to an even thickness, bringing, and grilling it over a high, direct heat will help prevent over drying while rendering a moist and delicious chicken breast.
When you buy skinless, boneless chicken breasts they have a tapered shape and attached tenderloin. For grilling purposes, it is best to remove the tenderloin since it is thin and will cook much too fast to be any good before the rest of the chicken is finished cooking. To even out the meat, pound it to about 1/2 inch thickness. This will give the breast a uniform thickness and break up the meat, which will allow the brine to permeate the meat quickly.
To brine the chicken, dissolve 1/4 cup/60 mL of table salt (or 1/3 cup/80 mL of kosher salt) with 1/4 cup/60 mL of sugar in 4 cups/950 mL of cold water. This will make enough brine for 4 chicken breasts. If you are making more of less, adjust the amount of brine accordingly. The sugar in the brine will caramelize on the surface of the chicken as it cooks, giving it a nice, grilled coloring. To help dissolve the sugar and water, simply add it to 1 cup of boiling water, stir until dissolved and add mixture to the remaining water.
Make sure the brine has cooled before adding the chicken. You can brine the chicken in a shallow, covered baking dish or a large zip lock bag. Make sure to brine for at least 30 minutes to 2 hours. It is important that you give the brine enough time to work, but don't overdo it. See Brining Poultry for more information.
At the end of the brining time, remove the chicken breasts and rinse thoroughly to remove any excess salt. Do not add additional salt to the chicken or it will be too salty in flavor. Season chicken breasts as desired, though, and prepare to grill.
With the grill hot and the cooking grate lightly oiled, put the chicken over the hottest part of the fire. The total cooking time should be about 4 to 6 minutes. Turn the chicken only once and leave the lid off the grill if using charcoal or close the lid if using gas. You want to cook over direct heat, and only direct heat. Timing is very important because of the short cooking time. Be careful not to overcook, and you will end up with the perfect chicken breast for any recipe.