Roasted Tuna with Cassava Root Crust and Lime-Cilantro Glaze

Instructions

1. 1

   Preheat your oven to 425°F. Pat the cassava matchsticks dry with paper towels and toss with 2 tablespoons of olive oil, half the salt, and a quarter teaspoon of black pepper. Spread on a baking sheet in a single layer.

   Tip: Drying the cassava thoroughly prevents steam and ensures maximum crispiness during roasting.

2. 2

   Roast the cassava for 15-18 minutes, stirring halfway through, until golden brown and crispy. Remove from oven and set aside.

   Tip: Watch carefully in the final minutes to prevent burning; cassava can crisp up quickly.

3. 3

   While the cassava roasts, prepare the glaze by whisking together lime juice, minced garlic, cilantro, honey, remaining salt, remaining pepper, and red chili flakes in a small bowl. Set aside.

   Tip: Prepare this glaze just before serving to keep the cilantro vibrant and fresh.

4. 4

   Heat 2 tablespoons of olive oil in a large cast-iron or stainless steel skillet over medium-high heat until the oil shimmers but doesn't smoke.

   Tip: A properly heated pan creates a beautiful sear on the tuna while keeping the interior tender.

5. 5

   Season the tuna steaks evenly on both sides with remaining salt and pepper. Once the pan is hot, carefully place the tuna steaks in the skillet and sear for 2-3 minutes per side for medium-rare doneness.

   Tip: For sushi-grade tuna, a quick sear on high heat is ideal; overcooking will dry out the delicate fish.

6. 6

   Transfer the seared tuna to serving plates. Top each steak generously with crispy roasted cassava, pressing gently so it adheres to the fish.

   Tip: Place the cassava on the tuna while it's still warm; the residual heat helps everything come together.

7. 7

   Drizzle the lime-cilantro glaze over and around each tuna steak. Sprinkle with white sesame seeds and garnish with fresh lime wedges.

   Tip: Serve immediately while the cassava is still crispy and the tuna is at its optimal temperature.