Ingredients

2 tablespoons olive oil 

1 medium onion, finely chopped 

1 pound rhubarb, cut into 1/2-inch pieces 

1/2 cup raisins 

1/2 cup packed light-brown sugar 

1 tablespoon peeled minced fresh ginger 

1 cinnamon stick 

1 tablespoon sherry vinegar 

Preparation

In a saucepan, heat oil over medium. Add onion and cook until softened, 5 to 6 minutes.

Add rhubarb, raisins, sugar, ginger, and cinnamon stick. Cook over medium, stirring occasionally, until rhubarb begins to break down, 6 to 8 minutes. Remove cinnamon stick and stir in vinegar. Serve with ham or pork and cornichons.