Place one heaping teaspoonful to a tablespoon of the filling on a wrapper. Wet the edges of the wrapper with water or egg wash and seal tightly (pushing the air out with your fingers) into a half-moon shape. (Stop here if you want a half-moon shape dumpling.) Then, bring the two ends together, apply water or egg wash to one end and press tightly to create a round shape. Repeat this process until all the filling/wrappers are used.