Lay the chicken leg skin-side down on a cutting board. Remove the back bone at the upper end of the thigh. Use a sharp knife to locate and score along the bone. Use the tip of the knife to make small incisions around the bone. Pull the thigh meat down to expose the joint and slice underneath the joint to release.
Use one hand to grab the exposed bones, then slice around the big joint to release the whole bone from meat. Use your fingers to feel the meat and remove any small bones. Use the bones to make chicken broth and deboned chicken leg and thigh for chicken dishes. Enjoy!