Roll the fresh loin of 1 tuna without bloodlines in cracked black pepper then sear it in a very hot cast iron pan without oil.

 

Cool down for better slicing.

 

Serve with Sauce: 1 cup peanut oil, 1 oz sesame oil, 2 oz soy sauce, 1/2 oz grated garlic, 1/2 oz grated ginger, and 5 spice powder to taste.

 

Slice tuna very thin, serve with sauce down and garnish with pickled ginger. A great appetizer.