Rhubarb Sauce

• 1-1/2 cups chopped rhubarb
• 1/4 cup water
• 2 tsp grated ginger root
• 1/3 cup apple cider vinegar
• 1/2 cup sugar
• 2 cups water
• 1 cup chopped red onion
• 1/4 tsp salt
• dash white pepper

Place rhubarb, 1/4 cup water and ginger root in small heavy saucepan. Simmer for 5 minutes and set aside. Combine sugar and cider vinegar with 2 cups water and bring to a rolling boil. Add the onion. Cook for 2 minutes, drain well and add to rhubarb. Season with salt and white pepper.

Serve sauce with fish.