Melt 12 oz of the chocolate in the microwave by heating 30 seconds at a time and mixing after each interval until the chocolate is completely melted.
Spread the chocolate evenly on a parchment lined baking sheet.
Spread the potato chips, pretzels, and popcorn on the chocolate. I suggest double layering the potato chips.
Heat the remaining chocolate in the same manner as before and spread over the first layer.
Top with the marshmallows, nuts, candy cane, salt and sprinkles. Allow to set completely by leaving in the refrigerator for about 15 - 20 minutes, or in a cool area in your house for about 40 minutes to an hour. Cut into irregular pieces and enjoy!