Start by patting the flank steak dry with paper towels. This helps to achieve a nice sear.

In a small bowl, mix together the salt, black pepper, and smoked paprika. Rub this spice mixture evenly over both sides of the steak.

Heat a large skillet over medium-high heat. Once hot, add 2 tablespoons of the butter.

When the butter is melted and bubbling, carefully place the steak in the skillet. Cook for about 4-5 minutes on each side for medium-rare, or until it reaches your desired doneness.

In the last minute of cooking, add the minced garlic and the remaining 2 tablespoons of butter to the skillet. Spoon the melted garlic butter over the steak as it finishes cooking.

Remove the steak from the skillet and let it rest for about 5 minutes before slicing. This helps the juices redistribute.

Slice the steak against the grain into thin strips. Serve with a sprinkle of fresh parsley and lime wedges on the side.