In a food processor, add the dates and any other dried fruit. Process until the mixture becomes sticky and forms a large ball. Add nuts and pulse until nuts are finely processed and well combined. You can also process less time for chunkier bits of nuts.

Press a large sheet of cling wrap into the bottom/sides of an 8x8 square pan, with overhang on the sides. Press bar mixture evenly into the bottom of pan. Place cling wrap directly over the bars for an airtight seal and chill several hours or overnight.

To slice, remove entire bar mixture using the cling wrap overhang. Place on a cutting board and use a sharp (or serrated) knife to cut into bars. Keep chilled in airtight container until ready to serve. Also keeps well at moderate room temperatures.