Preheat the oven to 350.
Thickly slice the rhubarb and put it into a deep oven-proof pot.
Add 1/4 cup of sugar and 1/4 cup of red wine.
Split open 1 vanilla bean and add them to the Rhubarb.
Roast the rhubarb until very tender, about 30 minutes.
This makes a wonderful sauce that you can add to ice cream or yogurt. Yum!