Plumping raisins will re-hydrate them and create fat, tasty morsels that are perfect for rice dishes, stuffing, or as garnishes for yogurt, cereal or soups. Try using flavored liquids to 'plump' the raisins with, like orange or pineapple juice, Brandy or other spirits, but even just water will make them sweeter.
Soak the raisins in enough hot liquid to cover them for about 10-15 minutes, (or until plump) then drain and serve once cool.
Alternatively, you can add the raisins to a saucepan and cover with your liquid of choice. Cook just to a boil, then immediately remove from the heat and let sit for 10-15 minutes (or until plump). Drain before serving.
Another method is to place the raisins in a microwavable bowl, cover with liquid and cook for 2-3 minutes (or until it boils) and allow to sit for 10-15 minutes (or until plump). Drain before serving.