Fill a small bowl with water and set aside.
Combine ground turkey, onions, cabbage, sesame oil, ginger, soy sauce, and salt in a bowl. Mix with hands to combine.
Lay a potsticker wrapper flat on a plate. Place a small spoonful (about 1/2 tablespoon) of filling in the center of a wrapper.
Dip your finger in water and wet the outer edge of the wrapper. Seal by folding the wrapper in half, pushing the air out, repeat with remaining wrappers.
Heat a wide pan over medium heat. Place 1 Tablespoon oil in the bottom of the pan and swirl the pan to spread the oil.
Place a single layer of potstickers in the pan and cook for 3 minutes or until the bottom is golden brown..
Carefully pour two tablespoons of water into the pan, and quickly cover the pan. Lower heat to medium-low and cook for 4 minutes or until fully cooked.
Remove the potstickers from the pan and place in a single layer on a parchment lined cookie sheet (they like to stick together, so don't stack.) Repeat with the remaining potstickers.