Recipe Instructions:
Ingredients
Vegetable oil, for grill
2 scallions
2 tbsp. toasted sesame oil
1 tbsp. soy sauce
1 tsp. finely grated lemon zest
1 tbsp. fresh lemon juice
1 tsp. finely grated lime zest
1 tbsp. fresh lime juice
1 tsp. kosher salt
FOR TUNA
2 (6- to 8-oz.) ahi tuna steaks, 1 1/2" to 2" thick
1 tbsp. vegetable oil
1 tsp. kosher salt
Mixed greens and grilled lemon wedges, for serving (optional)
Directions
SCALLION SAUCE
Step 1
Prepare a grill for high heat; clean and oil grates with vegetable oil. Arrange scallions in a single layer on grill and place a small baking sheet on top of them so whole scallion makes contact with grill. Grill until softened and charred, 2 to 3 minutes per side. Transfer to a cutting board and let cool.
Step 2
Once cool enough to handle, finely chop scallions and transfer to a small bowl. Whisk in sesame oil, soy sauce, lemon zest, lemon juice, lime zest, lime juice, and salt.
TUNA
Step 1
Season tuna steaks all over with vegetable oil and salt. Grill just until there are visible grill marks, about 2 minutes per side for rare and 3 minutes per side for medium-rare.
Step 2
Transfer tuna to a plate. Spoon scallion sauce over top. Serve with greens and lemon wedges alongside, if using.