Grilled Florida Spiny Lobster Surf and Turf

Ingredients (8)

• 3 raw whole Florida spiny lobster tails, cut in half lengthwise
• 6 (6-ounce) Florida beef tenderloin fillets
• 1 stick unsalted butter, softened
• 1/4 cup olive oil
• 2 large shallots, peeled and quartered
• 4 large garlic cloves, peeled and halved
• 1 teaspoon cayenne pepper
• Sea salt and fresh ground pepper, to taste