Pour the water and vinegar into a sauce pan and bring to a boil. Stir in the sugar, ginger, garlic, red pepper flakes and ketchup; simmer for 5 minutes. Stir in the cornstarch to thicken slightly.

Add Yahoo as a preferred source to see more of our stories on Google. A bowl of wasabi paste next to a set of chopsticks - Liudmila Chernetska/Getty Images Are you one of those daring people who ...

Wasabi is a Japanese root from the same family as horseradish. When I first saw it, I was surprised to find that it isn't green, as the dye in many shop-bought varieties may lead you to believe. I ...

THAT NEON-GREEN, sinus-searing blob of wasabi that comes with your sushi isn’t wasabi at all. It’s mustard and/or horseradish, plus food coloring. Those who mash as much as possible of it into a pool ...

For three decades, Mitsuyasu Asada has proudly tended the same lush mountainside terraces where his father and grandfather grew wasabi, the horseradishlike plant with a fluorescent-green hue and ...