Raisins, sultanas and currants look related and can be used in similar dishes. All three are dried grapes.
Sultanas are a type of raisin obtained from the light-colored and seedless Sultana grape variety. Currants are made from the Korinthiaki grape variety, also known as black currant. The purple-black grapes mainly come from near the Greek port city of Corinth. Due to their natural sweetness, currants go well with salty dishes such as couscous and lentil dishes.