If working with frozen lobster tails, thaw out lobster tails in a pot of cold water for 30 minutes or more, until fully thawed. Rinse and pat dry with paper towels.
In a small bowl, add softened butter, garlic powder, onion powder, paprika, salt, minced garlic and 1 tbsp fresh chopped parsley; set aside.
Butterfly the lobster tails using sharp kitchen shears. Cut the top shell down the centre of the back to the end of the tail (be sure to keep the tail fin intact). Remove and rinse away the vein and any shell pieces - pat dry. Use your thumbs and fingers to spread open the shell on top, then gently pull the lobster meat upward, separating it from the bottom shell, but keep the tail end intact and attached. Squeeze the shell halves back together beneath the meat to make it easier for it to rest on top of the shell.
Place lobster tails, meat side up in a baking or casserole dish. Brush the garlic butter mixture over the lobster meat, and pour 1/4 cup of white wine in the base of the dish.
Place in oven under the broiler setting for 10 to 12 minutes or until lobster meat is opaque, and edges are slightly charred.
Remove from oven, spoon sauce over top of lobster tails if desired and garnish with fresh parsley and a slice of lemon. Serve immediately and enjoy!