Use any flavor of almond paste or a mixture of flavors and colors. Roll a large marble of paste between your hands to make a smooth ball; then press it gently to make a flat disk. Embrace the disk with 2 walnut halves. Roll the sides in the finely chopped pistachio nuts.
Dip one side of each confection into the hot caramel syrup to cover the nut lightly; then set it on a piece of parchm