Melt the chocolate chips and sweetened condensed milk on the stove top or in microwave. Mix continuously. Remove from heat. Add peppermint extract and mix. Then add the finely crushed crackers and make sure they are fully covered in the chocolate mixture. Cool for about 2 minutes. Then make each cookie ball using 1 tablespoon of “batter”. Hand roll into balls, set on a non-stick surface such as wax paper. Let cool completely before serving. Optionally for decor, press one chocolate chip gently into the center of each cookie. Recipe makes approximately 34 cookie balls.