1 cup butter
2 tablespoons prepared Dijon-style mustard
1 tablespoon fresh lemon juice
1 tablespoon chopped garlic
1 tablespoon chopped fresh parsley
2 pounds medium raw shrimp, shelled, deveined, with tails attached
Preheat oven to 450 degrees F (230 degrees C).
In a small saucepan over medium heat, combine the butter, mustard, lemon juice, garlic, and parsley. When the butter melts completely, remove from heat.
Arrange shrimp in a shallow baking dish. Pour the butter mixture over the shrimp.
Bake in preheated oven for 12 to 15 minutes or until the shrimp are pink and opaque.