Roasted Tuna with Cauliflower

Instructions

1. 1

   Preheat your oven to 425°F. Toss cauliflower florets with 2 tablespoons olive oil, half the minced garlic, salt, and thyme on a large baking sheet. Spread in a single layer and roast for 20-22 minutes, stirring halfway through, until golden and tender.

   Tip: Don't overcrowd the pan so the cauliflower caramelizes properly.

2. 2

   While the cauliflower roasts, pat the tuna steaks completely dry with paper towels and season both sides generously with salt, pepper, and red pepper flakes about 5 minutes before cooking.

   Tip: Dry surfaces are crucial for achieving a proper sear on the tuna.

3. 3

   Heat the remaining 2 tablespoons olive oil in a large skillet over medium-high heat until it shimmers. Carefully place the tuna steaks into the pan and sear for 2-3 minutes on the first side without moving them.

   Tip: For medium-rare tuna, aim for 2-3 minutes per side depending on thickness.

4. 4

   Flip the tuna steaks and sear the other side for another 2-3 minutes. Transfer the cooked tuna to a warm plate and tent loosely with foil.

   Tip: Tuna continues to cook slightly as it rests, so avoid overcooking.

5. 5

   In the same skillet, reduce heat to medium and add the remaining minced garlic. Toast for about 30 seconds until fragrant, then add the capers and stir for 1 minute.

   Tip: Toasting the garlic prevents it from burning and enhances its flavor.

6. 6

   Pour in the fresh lemon juice and scrape up any browned bits from the bottom of the pan. Remove from heat and whisk in the cold butter until it melts into a silky sauce, then stir in the lemon zest.

   Tip: The emulsified butter creates a rich sauce that coats the fish beautifully.

7. 7

   Divide the roasted cauliflower among four plates, place a tuna steak beside it, and generously drizzle the lemon-caper butter sauce over both components. Serve immediately while everything is still warm.