Begin by taking 1/2 of the spices and liberally applying to the chicken. Bake in a 325 degree oven for 20 minutes. Remove from the oven and let cool.Once cool, pull the chicken off the bone. Cut into 1" cubes. In a bowl, combine the chicken, red onion, mayo, mustard and remaining spices. mix well.To make the sandwich use whatever you like. I used gluten free bread that I toasted and added lettuce and a good slice of a beefsteak tomato.Serve and enjoy!