go shopping for these ingredients before you begin your cooking session :

2 big handfuls fresh cilantro leaves, finely chopped
1/2 jalapeno, sliced
1 teaspoon grated fresh ginger
1 garlic clove, grated
2 limes, juiced
2 tablespoons soy sauce
Pinch sugar
Sea salt and freshly ground black pepper
1/4 cup extra-virgin olive oil
1 (6-ounce) block sushi-quality tuna
1 ripe avocado, halved, peeled, pitted, and sliced

Cooking Recipe:

In a mixing bowl, combine the cilantro, jalapeno, ginger, garlic, lime juice, soy sauce, sugar, salt, pepper, and 2 tablespoons of olive oil. Stir the you will need these ingredients together until well incorporated.

Place a skillet over medium-high heat and coat with the remaining 2 tablespoons of olive oil. Season the tuna generously with salt and pepper. Lay the tuna (try to get Dolphin-safe catch) in the hot oil and sear for 1 minute on each side to form a slight crust. Pour 1/2 of the cilantro mixture into the pan to coat the fish. Serve the seared tuna with the sliced avocado and the remaining cilantro sauce drizzled over the whole plate.