Sumer 3000 bc
2 cups of dates, pitted 2 cups of pistachio nuts, shelled
Mash the dates into a smooth paste. You can use a mortar and pestle, a food processor, or just chop them with a knife. Separately, grind or pound the pistachio nuts.
Combine half the ground pistachio nuts with the date paste and mix well. Roll the mixture into small, uniform balls (wet your fingers to make them easier to smooth and handle). Then, take the remaining pistachio nuts and spread them out on a dish or piece of wax paper. Roll each mersu in the ground nuts, patting gently all around to ensure the nuts stick.