Lay chicken thighs out on a cutting board, and using sharp kitchen scissors, cut out bone from thigh.
Remove bones (save them for chicken stock if you make your own!)
Pound chicken flat and make sure they are very dry, pat with paper towel if needed.
Generously salt and pepper meat side of chicken (don't salt fat side, as it can easily burn).
Heat a cast iron (or heavy) pan on high heat, so it is scorching hot (but not smoking).
Reduce heat to medium-high.
Add ghee/butter to pan, and let melt.
Add chicken to pan, starting with the fat side down.
Let fat crisp and chicken brown, about 7 minutes.
Flip chicken and cook until 165 degrees internal temp - about 6 minutes.
Let rest 2-5 minutes and pat off any excess butter softly with a paper towel.
If desired, cut chicken into strips.