Chip shop curry sauce has, to my mind, an odd taste - and one that I don’t like. It’s years since I tried it. You tend to find it in chip shops run by Chinese people. It’s sweeter, often with raisins in it, and star anise.
A quick Google tells me that my online supermarket stocks “curry sauce granules”. Yuck - by any measure:
https://www.ocado.com/products/bisto-chip-shop-curry-sauce-granules-292229011?&vreg&gclid=EAIaIQobChMIwc_qj8yR8AIVF-ztCh3pKwz6EAQYAyABEgL4IPD_BwE&gclsrc=aw.ds
I’ve never tried currywurst. Another quick Google attributes its inventor acquiring curry powder from British troops stationed in Germany as part of the postwar occupation.
