Soften the dates. Place the pitted Medjool dates in warm water just until softened, then drain thoroughly.
Process the ingredients. Add the drained dates, almonds, walnuts, flax seeds, pumpkin seeds, blackstrap molasses, orange zest, cinnamon, ginger, allspice, nutmeg, and cloves to a food processor.
Blend until the mixture holds together. Process until the nuts and seeds are finely broken down and the mixture begins forming moist clumps. Pinch a little between your fingers; it should hold together easily.
Adjust only if needed. If the mixture remains crumbly after sufficient processing, add a small amount of water and process again. Add only enough to help the mixture bind.
Shape the energy balls. Divide the mixture into 24 even portions. Roll each portion firmly between your palms to form a ball.
Coat with chia seeds. Place the ground chia seeds in a shallow bowl. Roll each energy ball in the chia seeds until lightly coated on all sides.
Chill. Place the finished balls in the refrigerator and chill until firm enough to handle easily while still soft and chewy in the center.