In a bowl, combine the melted butter, finely chopped pepper, crushed garlic, smoked paprika, salt, balsamic vinegar, and lemon juice. Stir well to ensure all ingredients are thoroughly mixed.
Get your prawns and place them in a large bowl or a resealable plastic bag. Pour the marinade over the prawns, ensuring they are well-coated.
Allow the prawns to marinate in the refrigerator for at least 30 minutes to 1 hour. This helps the flavors to infuse into the prawns.
Preheat a large frying pan or skillet over medium-high heat.
Once hot, add the marinated prawns to the pan along with the marinade.
Cook the prawns for 2-3 minutes on each side or until they turn pink and are cooked through. Be careful not to overcook them.
Once the prawns are cooked, transfer them to a serving dish along with the sauce from the pan.
Garnish with some fresh parsley or cilantro and a few slices of lemon on the side.
Prawn Pil Pil is best served hot. It can be enjoyed as an appetizer with crusty bread to soak up the delicious sauce.
Alternatively, it can be served as a main dish alongside a simple salad or steamed vegetables and rice or pasta.