currant vs. raisin
Both are dried grapes used in baking, but they come from different grape varieties and differ mainly in size, sweetness, and tartness - the baking sense of currant has nothing to do with the unrelated fresh blackcurrant/redcurrant berry that shares the same name.
- currant
- A tiny, tart dried grape made from the seedless Black Corinth (Zante) grape - much smaller and less sweet than a raisin. Unrelated to the fresh currant berry despite sharing the same name.
- raisin
- A dried grape, usually from larger, sweeter grape varieties (like Thompson Seedless); bigger, softer, and sweeter than a currant.
- If a baking recipe just says currants, it almost always means the small dried-grape kind, not the fresh berry.
- Sultanas (a British term) are a third, related but distinct dried-grape product, made from golden or green grapes.