¾ cup instant corn meal
¼ cup grated parmesan cheese
3 Tablespoons unsalted butter
1 ¼ pounds medium raw shrimp, peeled and deveined, tails intact
2 large cloves garlic, minced
Pinch of cayenne pepper (optional)
Juice of ½ lemon, plus wedges for serving
2 Tablespoons roughly chopped fresh parsley