Heat a wok or large skillet over medium high heat.
In a small bowl, mix together the sesame oil, soy sauce, mirin and black pepper. Set aside.
Melt the butter in the pan and spread it around the grill with a spatula. Add the minced garlic and sauté for approximately 30 seconds until fragrant.
Then add in the shrimp and stir to coat the shrimp in the butter.
Pour the sauce on top of the shrimp and toss to fully coat the shrimp in the sauce.
Sauté for 4-5 minutes until the shrimp is cooked through (shrimp will be pink).
Remove the grill. Serve immediately while warm and enjoy!
