In a small bowl mix together the lemon juice, olive oil, capers, basil, garlic, lemon zest, sea salt, and black pepper.
Heat pan until sizzling hot. Splash a bit of water on it to test the temperature. When it immediately evaporates the pan is ready.
Add about 1 tsp olive oil to the pan. Sear the halibut or other white fish for 9 o seconds per side.
Reduce the heat to medium and cook for an additional 2-3 minutes per side until it becomes a bit flaky.
When halibut is cooked transfer to plate and drizzle with the lemon basil sauce.
