Choose a piece of tuna that's about 2.5cm (1in) thick. It has the best taste and texture if it's lightly seared so it's almost ... with steamed rice and Japanese pickles.

If you want to elevate your tuna salad, add miso — a Japanese fermented soybean paste ... whisk miso into your dressing and drizzle over seared tuna, or mix miso into your soy sauce and serve ...