Line a medium size baking pan with parchment and set aside.Combine the chopped chocolate in a microwave-safe bowl. Microwave for 30 second intervals stirring between each until the chocolate has melted.Pour the chocolate on the baking pan. Using a rubber spatula evenly spread the melted chocolate on the pan. You want it to be at least ¼ inches or thicker.Drizzle the peanut butter over the melted chocolate or add 3 dollops of peanut butter randomly. Holding a small spoon drag the spoon through the peanut butter and chocolate creating swirls. If your peanut butter is too thick, thin it by adding 1 tablespoon of milk prior to adding it to the melted chocolate.Place your toppings randomly on the melted chocolate and peanut butter.Put the bark in the refrigerator for at least 3 hours to harden. Cut into pieces, eat and enjoy!