soy sauce, low sodium
In a medium saucepan, melt butter. Add onoins and cook until softened. Add sugar, lemon juice and berries and simmer until they release their juices.
Add red wine vinegar and soy sauce. Simmer for an additional 10-15 minutes.
Remove from the heat, place in a food processor or blender and blend until smooth. Pass through a strainer if seeds are not desired.
Can be frozen for up to 1 year and makes 1 cup--serve this with duck, pork, chicken.