I know your palette is much more sophisticated than mine; most people's are. But what about 1) instant coffee or 2) just boiling the grounds in a pot of water and pouring them through a sieve of some sort like cheese cloth? I think some old fisherman I knew just boiled the grounds in a pot and poured the coffee off the top into their cup.
Thats because the grounds sink, you can just put a spoonful in a cup, but you have to keep it warm. Instant coffee is terrible if spilt, my bag and all its contents have been glued together by coffee, not nice, nor spilt milk either, it stinks.