Lemongrass Steak Frites with Chili-Garlic Aioli

A vibrant French-Vietnamese fusion take on the classic bistro dish, featuring seared steaks marinated in fragrant lemongrass, fish sauce, and aromatics, served alongside golden double-fried frites and a zesty chili-garlic dipping aioli.

Prep Time: 30 min
Cook Time: 30 min
Total Time: 60 min
Servings: 4
FrenchVietnameseFusionDairy-FreeShellfish-FreeSesame-FreeHigh-Protein

Ingredients

  • 2 lb hanger steak or flank steak, trimmed
  • 3 stalks fresh lemongrass, pale tender inner bulb only, finely minced or pounded
  • 4 cloves garlic cloves, finely grated
  • 1 medium shallot, finely minced
  • 2 tablespoon fish sauce
  • 2 tablespoon low-sodium soy sauce
  • 1.5 tablespoon brown sugar
  • 3 tablespoon neutral cooking oil (such as canola or avocado oil), divided
  • 0.5 teaspoon freshly cracked black pepper
  • 2 lb Russet potatoes, peeled and cut into 1/4-inch matchsticks
  • 6 cup peanut oil or vegetable oil for deep-frying
  • 1 teaspoon fine sea salt
  • 0.5 cup mayonnaise
  • 2 cloves garlic cloves, grated into a smooth paste
  • 1.5 tablespoon sambal oelek or red chili paste
  • 1 tablespoon fresh lime juice
  • 0.5 teaspoon Dijon mustard
  • 0.25 teaspoon kosher salt
  • 2 tablespoon fresh cilantro leaves, roughly chopped
  • 4 wedges lime wedges

Instructions

  1. 1.

    In a shallow baking dish or bowl, combine the minced lemongrass, 4 cloves grated garlic, shallot, fish sauce, soy sauce, brown sugar, 2 tablespoons neutral oil, and black pepper. Whisk until the sugar dissolves.

  2. 2.

    Add the steak to the marinade, turning to coat all sides evenly. Cover and refrigerate for at least 30 minutes, or up to 4 hours for deeper flavor infusion.

  3. 3.

    Prepare the Chili-Garlic Aioli: In a small bowl, whisk together the mayonnaise, 2 cloves grated garlic paste, sambal oelek, fresh lime juice, Dijon mustard, and 0.25 teaspoon kosher salt until smooth. Cover and refrigerate until serving.

  4. 4.

    Prepare the potatoes: Submerge the cut potato batons in a large bowl of cold water for at least 20 minutes to rinse off excess surface starch. Drain thoroughly and pat completely dry with paper towels.

  5. 5.

    Pour the frying oil into a large Dutch oven or deep fryer and heat to 325°F (165°C). Fry the potatoes in two batches for 4 to 5 minutes until soft and pale, but not browned. Transfer to a paper towel-lined wire rack to drain and cool for 10 minutes.

  6. 6.

    While the fries rest, remove the steak from the marinade and wipe off excess large pieces of aromatics to prevent burning. Heat 1 tablespoon of neutral oil in a heavy cast-iron skillet over high heat until shimmering (or preheat a grill to high).

  7. 7.

    Sear the steak for 3 to 4 minutes per side for medium-rare (internal temperature of 130°F/54°C), developing a rich, caramelized crust. Transfer to a cutting board and let rest for 8 to 10 minutes.

  8. 8.

    Increase the frying oil temperature to 375°F (190°C). Fry the blanched potatoes in batches for 2 to 3 minutes until deeply golden, crispy, and rigid. Drain on a wire rack and immediately toss with fine sea salt.

  9. 9.

    Slice the rested steak thinly against the grain. Plate the sliced steak alongside generous mounds of hot frites, small ramekins of chilled chili-garlic aioli, lime wedges, and a scatter of chopped fresh cilantro.

Tips

  • 💡To get the lemongrass tender enough for the marinade, peel away the dry outer layers, use only the bottom 4-5 inches of the stalk, and crush or mince it as finely as possible.
  • 💡For the crispiest frites, ensure the cut potatoes are completely dry before entering the oil; moisture is the enemy of crispiness.
  • 💡Always slice hanger or flank steak across the grain to ensure every bite is tender and easy to chew.

Recipe from TheCookbook.ai

Created by Basil Roux