Place a large 12-14 inch skillet over medium heat. Add the butter and garlic. Sauté the garlic for 1-2 minutes.
Add the tequila, lime zest, lime juice, crushed red pepper, and cilantro. Stir. Then add in the shrimp. Salt and pepper liberally.
Sauté the shrimp for 5-7 minutes. Make sure they are fully pink, yet that the shrimp are still in the C shape, not closed like an O shape. (Remember, O is for overcooked.)
Turn off the heat. Then taste and salt and pepper as needed. Serve warm.
