Begin by rinsing the shrimp under cold water until they are clean. Carefully peel and devein each shrimp. Pat them dry using paper towels.

In a separate mixing bowl, melt some butter. Stir in freshly minced garlic, grated Parmesan cheese, black pepper, and optional red pepper flakes.

Add the shrimp to the marinade and toss until evenly coated. Allow to marinate for at least 15 minutes.

Preheat your oven to 400°F (200°C). Arrange the marinated shrimp in a single layer on a parchment-lined baking tray and bake for 10–12 minutes.

Remove from the oven and let cool slightly. Serve with a squeeze of fresh lemon juice and a sprinkle of chopped parsley.