Rhubarb is an extremely tart vegetable harvested from a large-leafed plant related to buckwheat. Choose crisp stalks with fresh, blemish-free leaves. Depending on the type of rhubarb, stalks can range from pink to bright red. The rhubarb leaves are toxic and should be discarded.
Anel food cake or spronge cake cups can be used in place of the pound cake in this dessert.
Prepare the sauce up to one day in advance; cover and refrigerate it until ready to serve.