Flat Grilled Chicken 2 Whole Chickens Your favorite Seasonings. I like Garlic Powder, black Pepper and Mrs. Dash 1 stick of Butter Brine ( 1 gallon of water,1 cup kosher salt and 1 cup sugar ) It's easier just to make 2 gallons Now after you have the brine made and submerged the chickens in it. Put your favorite seasonings in the brine,, and don't be skimpy. Put a plate on them to hold them under the brine. An easy trick is put a brick or rock in a 1 gallon freezer bag with all the air expelled and set it on top on the plate. Set them in the fridge for 4 - 8 hours. While the chickens are brewing take your stick of butter and add a lot of your seasonings to it. Now mix it up good and form it back into a nice cigar shape, put it in a baggie and pop it in the freezer until you take the chickens out. Fire up the grill and have it cooking good while you prepare the chickens , Take the chickens out and now you may need some bone shears , but cut from the neck to the rump on either side of the backbone and take the backbone completely out. Now set him on the table , press on the breasts and he will flatten completely out. Pull your seasoned butter out, cut it in thin slices and push it under the skin of the chicken as far as you can and as many places as you can. Put them on the grill and keep an eye on them. Start with the bone side down and flip them over for some nice grill marks. When they reach 170 degrees inside at the breasts and legs they are done. Serve with you favorite BBQ Sauce, Grilled Pinapple, and maybe a grilled Potato and salad. Enjoy.