Yuzu Kosho (spicy citrus seasoning paste)

Yuzu is native to China but commonly used in Korea and Japan where it became a popular ingredient for cooking and a natural remedy for fighting off colds and increasing circulation in the skin. Yuzu is used for its zest and juice in many drinks, salad dressings, and marinades.

• 1 cup finely grated lime zest (about 16 limes)
• 2 tablespoons finely grated lemon zest
• 2 tablespoon finely grated grapefruit zest (preferably white)
• 1 tablespoon kosher salt
• 2 tablespoons fresh grapefruit juice (preferably white)
• 2 tablespoons bottled yuzu juice
• 1 green Thai chili, seeded, minced
• 2 teaspoons fresh lime juice
• Pinch of sugar