Remove the heads from the shrimp and put the shrimp in a 13x9 baking dish in one layer.
Cut butter into small pieces and sprinkle over shrimp. Add chicken broth to the baking dish. Sprinkle minced garlic, red pepper flakes, and salt over shrimp.
Bake until shrimp is opaque and cooked through {they will be pink}, about 10-15 minutes.
Sprinkle with parsley and lemon juice. Enjoy with good french bread.