In a mixing bowl, combine the peanut butter, chilli sauce, liquid aminos, red pepper flakes and coconut palm sugar and mix very well until the peanut butter has been relatively thinned out. ad the chopped peanuts if using it. Using a tablespoon, add the coconut milk until a thick sauce has formed to desired consistency (I like a thinner sauce so used more). Pour the sauce over the shredded chicken and mix well until chicken is fully coated. Use the mixture in a sandwich, over a salad or any other way you like!