Grilled Wasabi Tuna - cooking recipe

Ingredients

2 teaspoons toasted sesame seeds
2 teaspoons wasabi powder
2 teaspoons ground pepper
1 teaspoon garlic powder
1 pinch salt
4 (6 ounce) tuna steaks
1 tablespoon wasabi powder
1 tablespoon water
1/4 cup mayonnaise
1/4 cup sour cream
1 tablespoon lemon juice
1 tablespoon soy sauce
2 tablespoons sliced scallions

Preparation

combine first 5 ingredients, rub over tuna, chill for 30 minutes.
heat grill to high.
grill tuna aprox 5 mins per side, to taste- (i like mine cooked 7-10 mins per side, well done).
combine remaining ingredients by whisking together, serve alongside tuna.