Coffee experiment, part 2

Following part 1, today I tried ginger and cumin. I went light on the cumin because I didn't want curried coffee, and I went light on the ginger because I thought it might be overpowering. I had to go back and add more ginger because I couldn't taste it.

End result: not bad, but not great either.

Tentative hypothesis: "cake" spices (cinnamon) seem to work better than "curry" spices (ginger, cumin, paprika), but I need more data.