If you like crispy skin, you're better off cooking chicken thighs in the oven or on the grill. Try my sheet-pan honey mustard chicken and cauliflower or sheet-pan soy sauce chicken and broccoli. If you really want to boil the chicken first, then it works okay to put boiled thighs under an oven broiler. Place the thighs on a baking sheet. Brush oil or butter over the skin. You can also add spices, seasonings, or sauce (like BBQ sauce). Broil the chicken until the skin is crispy, making sure to keep a close eye on the chicken so it doesn't burn.