Melt the butter in a heavy skillet over medium heat.
Season the shrimp with salt and pepper.
Cook for about 2 minutes on each side until almost fully cooked. Using a slotted spoon, transfer the shrimp to a plate and tent it with foil.
Add the onion and garlic and cook until the onion is translucent, about 5 minutes. Add the jalapenos and cook for 2 more minutes.
Stir in the tequila and bring to boil, scraping up the brown bits on the bottom of the pan. Boil for 1 minute. Stir in the lime juice and cilantro. Return the shrimp to the pan and toss to coat with sauce and continue to cook until the shrimp are fully cooked, about 2 to 3 minutes.
Transfer the shrimp to a serving platter and serve alone or with white rice or pasta, if desired.
Notes
Be sure to purchase peeled and deveined shrimp to make prepping this dish even easier.
This shrimp scampi can be served with white rice or pasta.