In the world of fruit though, my love for hot sauce is paralleled by citrus. That’s why yuzu kosho (yuzu chili paste) is perhaps my favorite hot sauce of them all. For those of you that have never had yuzu, it’s a small Japanese citrus with a taste somewhere between Meyer lemon, grapefruit and lime. In Japan the zest is combined with green chili peppers to make a potent paste that not only adds heat, it adds a heavenly fragrance that goes with just about anything. While yuzu kosho in paste form is concentrated and delicious, I like to add some citrus juice so you can use it as a sauce. Yuzu isn’t the easiest citrus to find, but you can get it in Fall at Japanese supermarkets. If you can’t find yuzu, this is also delicious made with other citrus zests such as Meyer lemon, lime, or even orange. Use this sauce to liven up Katsu, add some zing to Yakisoba, or give a kick to a Tomago Sando. It’s probably not the best thing for polishing crusty boots, though! Warning: These are some seriously potent chilis. After handling them, my hands literally felt like they were on fire for almost 24 hours. I’d recommend using gloves. If you happen to make the same mistake I did, scrubbing your hands with vegetable oil, then washing with dish soap helps a little.