TUNA STEAK BURGERS

Tuna Steak Burgers image

Provided by Geoffrey Zakarian

Time 2h5m

Yield 4 burgers

Number Of Ingredients 22

1/2 cup mayonnaise
2 tablespoons adobo from a can of chipotle peppers
2 tablespoons minced fresh parsley
1 tablespoon minced capers
1 tablespoon minced shallots
2 teaspoons sherry or white wine vinegar
1 teaspoon grated ginger (grated on a rasp grater)
1 clove garlic, grated on a rasp grater
Kosher salt and freshly cracked black pepper
4 fresh or frozen tuna steaks, about 4 ounces each and 3/4 to 1 inch thick, at room temperature
Olive oil, for drizzling
Kosher salt and freshly cracked black pepper
4 brioche or potato rolls, split
Butter, for the rolls
1 clove garlic, peeled
Butter lettuce leaves, for topping
Pickled red onions, for topping
1/2 jalapeno, thinly sliced
Fried Shallots, recipe follows, for topping
6 to 8 medium shallots, very thinly sliced on a mandoline
Neutral oil, for frying
Kosher salt

Steps:

For the chipotle mayo: Whisk together the mayonnaise, adobo, parsley, capers, shallots, vinegar, ginger and garlic; season with salt and pepper. Set aside.
For the tuna: Preheat a large grill pan on high heat until very hot.
Drizzle both sides of each tuna steak with olive oil and season with salt and pepper. Sear the steaks on each side for about 2 minutes for medium.
Meanwhile, toast the rolls, spread with a little butter and rub with the garlic.
Spread both sides of each roll with the chipotle mayo. Then layer on lettuce leaves, a tuna steak and some pickled red onions, jalapenos and Fried Shallots.
In a medium, heavy-bottomed pot, add the shallots and enough oil to cover by at least 2 inches. Place the pot over medium-low heat and bring to a low simmer, stirring frequently so the shallot rings separate. Cook at a low simmer until most of the bubbles subside and the shallots are browned and crispy, 20 to 25 minutes. Use a slotted spoon or sieve to remove the shallots, place on a paper towel-lined plate to drain and season with salt. Let dry at least 1 hour. If the shallots are not completely crispy, dry in the oven at 200 degrees F for another 5 to 10 minutes.