Wasabi is one of the most iconic and recognizable ingredients in Japanese cuisine . This spicy green condiment , often paired with sushi and sashimi , has won over food lovers around the world for its spicy flavor and its ability to enhance the taste of raw fish . However, many do not know that real wasabi is a Japanese radish , a rare and difficult-to-grow plant.
What is wasabi?
Authentic wasabi is obtained from the root of the Wasabia japonica plant, a plant that belongs to the Brassicaceae family, the same as cabbage and horseradish . This plant grows mainly along the riverbeds in the mountainous areas of Japan , where the environmental conditions are ideal for its development. This root needs fresh, running water, a humid climate and plenty of shade to grow properly, which makes its cultivation particularly complex and delicate.
Authentic wasabi is known for its intense flavor, but different from the spiciness of chili peppers. Its spiciness is manifested through vapors that stimulate the nasal cavities rather than the palate. This is due to chemical compounds called isothiocyanates, which are released when the wasabi root is grated . These compounds not only give the characteristic flavor, but also have beneficial properties and antibacterial properties that contribute to the safety of eating raw fish.
There are two main varieties of wasabi: " Wasabi Sawa ", grown in running water, and " Wasabi Hataka ", grown in traditional but irrigated fields. The difficulty in cultivation and its slow growth make this ingredient extremely expensive. For this reason, what we find in most Japanese restaurants is actually a mix of horseradish , mustard powder and green food colouring. This substitute has a similar flavour, but lacks complexity and freshness. For those who have been lucky enough to taste the real thing, the difference is immediately perceptible: the taste is less aggressive , more aromatic and with a hint of sweetness that makes the gastronomic experience much more balanced.
How do you use wasabi in cooking?
Although it is well known as a condiment for sushi and sashimi, its culinary applications extend far beyond these traditional dishes. Authentic wasabi is an extremely versatile ingredient.
- Sushi and Sashimi : The most common way wasabi is used is as an accompaniment to sushi and sashimi. Traditionally, it is applied directly between the rice and the fish in nigiri sushi , or served alongside the sashimi.
- Soba and Noodle : Wasabi is often served with soba, the buckwheat noodles typical of Japanese cuisine . In this case, it is dissolved in soy sauce and used as a dip for the noodles.
- Sauces and Condiments : One of the most common applications is the preparation of a wasabi mayonnaise , which can be used to accompany fried fish dishes, grilled vegetables or even as a condiment for sandwiches and hamburgers .
- Snacks and Sweets : In Japan, wasabi is also used to flavor snacks such as dried fruit or crispy pea snacks . Additionally, some traditional sweets include a small amount of it to balance the sweetness and add an unexpected note of spiciness.
- Cocktails and drinks : Finally, wasabi has also entered the world of mixology . It is sometimes used to add a spicy touch to vodka or gin-based cocktails, creating refreshing drinks with a unique flavor.
