Pat chicken dry with paper towels, and place, skin side up on a baking tray. Seasoned with salt and pepper, and chill, uncovered, for skin to dry out (8 to 12 hours or overnight).
Preheat grill to medium-high heat.
Place ALCAN® Non-Stick Ultimate Grilling Foil on grill grate with non-stick (dull) side facing up. Immediately place chicken skin side down on foil.
Grill until skin is well marked and crispy, 5 to 6 minutes. Turn thighs over and grill until cooked through.