Wikipedia
Kaasstengels , Kastengel or kue keju is Dutch- Indonesian cheese cookie in the form of stick, commonly found in the Netherlands and Indonesia. The name describe its ingredients, shape and origin; kaas is Dutch word for "cheese", while stengels is also Dutch word for "stick". Unlike most cookies, kaasstengels taste savoury and salty instead of sweet. In Indonesia, owed to its colonial links to the Netherlands, kaasstengels, together with nastar and kue putri salju are the popular kue kering (dried kue or cookie) during festive occasion, such as Natal (Christmas) and Lebaran (Eid al Fitr).
Kaastengels on the other hand, refer to Dutch hapjes (snacks) of "cheese-fingers", derived from Dutch kaas (cheese) and tengels (fingers). It is a small spring roll or loempia-like crepe of the size of a finger, filled with gouda or edam cheese, which have been deep fried and served with a small bowl of a spicy chili sauce.