When I was visiting family in Berlin, we went around the corner to Kiez Eis . It was there I tasted Spargel Eis in but I did not order a whole ice cream cone of that flavor. We visited the Spargel Capital in Germany where mounds of earth covered the stalks so the asparagus was white instead of green.
And wondering why urine smells after you eat asparagus? This article from the Cleveland Clinic explains it.