Pre heat oven to 390F
Lightly salt & pepper chicken thighs. In a double bottom pan, heat few tbsp of vegetable oil on medium high heat. When the oil is hot enough, quickly sear chicken thighs, skin side first. Sear each side for 3 minutes.
Drain chicken thighs on oil absorb paper to get rid of excess oil. Then baste chicken all over with Cajun sauce
Arrange chicken thighs neatly, skin side down on baking pan, and grill for 10 minutes.
Turn the chicken thighs skin side up then grill for another 8 minutes. The chicken should be done by now. If not, keep cooking them for another 2-3 minutes. You can check whether it is done by insert a knife into the part near the bone, if there is blood coming out, it means you need to cook more.
Take grilled chicken out of the oven and let them cool down for 10-15 minutes (to room temperature). Then use 2 forks to separate the meats into small pieces.