Preheat the broiler to high heat. Place a rack 4-5 inches away from the heating mechanism.
Butterfly the tails by cutting the top of the shell right down the center using kitchen shears, but leaving it intact at the bottom. Wiggle your fingers around the connective tissues to loosen the meat. Gently pull it up through and set on top of the shell. If there is a brown, green or black vein, remove it. Repeat with remaining tails and set aside on a rimmed baking sheet or broiler pan.
In a small saucepan, meat the clarified butter (ghee). Whisk in the lemon zest, parsley and hot sauce, if using.
In a small bowl, whisk together the garlic powder, onion powder, salt and paprika. Depending on how large your tails are, you might not need this whole amount. Sprinkle the seasoning blend liberally over tail meat.
Using about half of the butter, baste the tails.
Broil for about 1 minute per ounce, but watch carefully! Remove when meat is opaque, but before it starts to brown.
Remove and baste again with the butter mixture. Spritz with fresh lemon wedges.
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