Spread peanut butter on one cracker then cover with another cracker, making a sandwich. Melt chocolate bark (I like Ghirardelli) in microwave or double boiler.
Dip cracker sandwich cookies into chocolate, covering both sides, shake or brush off excess.
Place cookies on parchment or waxed paper and allow to harden. (I find that if you put the paper on a cookie sheet and place it in the freezer for 5 minutes, the cookies harden up faster!) Store in an airtight container. Makes about 68 cookies