In a 10" cast iron or heavy bottomed skillet, heat half the coconut oil over high heat until just melted.
Add the ham slices, and reduce heat to medium. The ham will release some liquid initially and look soft and floppy like bacon. Continue cooking on medium, turning occasionally (every couple of minutes) until golden and crispy on both sides and any fat has rendered--about 10 minutes total. If the skillet starts to look too dry while the ham is frying, add the remaining coconut oil if needed.