Sushi grade Tuna steak
1/4 cup brown sugar
1/8 teaspoon cayenne
1/8 teaspoon ground cumin
1/8 teaspoon ground coriander seed
1/4 teaspoon kosher salt
sweet thick soy sauce
Combine the sugar with the spices and dry rub the tuna steak.
Lightly brush a saute pan with oil and get it smoking hot over high heat
Quickly sear both sides of the steak-leave the center rare.
Thinly slice the steak and serve with the ginger, wasabi, and soy.