01 -
Mix marinade ingredients and coat tuna. Cover and chill for an hour.
02 -
Get a heavy pan, preferably cast iron, really hot over medium-high heat.
03 -
Cook tuna 1-1.5 minutes each side for rare. Go longer if you want it more done.
04 -
Slice tuna into 1/4-inch pieces. Top with scallions. Serve with rice or salad.