Coming in for a bit of a product plug: years ago I got signed up for Zingerman's Food Explorer club for a few months as a gift, and one of the things they sent me was Kitchens of Africa's yassa simmer sauce. Pretty nuts & bolts quick weeknight meal: brown some meat/tofu/vegetables, pour in the sauce, simmer for a few minutes, serve over rice. But I gotta say, as somebody who had not experienced any African cuisine prior to this (other than a bit of Ethiopian), it was really good. And I couldn't find anywhere to buy more of it, because Zingerman's stopped carrying it.
I've checked in on the company occasionally ever since then, and recently found out they finally have their own web retail up and running out of their HQ in North Carolina. I just got a big box of maffé, yassa, and Zanzibar curry simmer sauces, along with some Kaani hot sauce, delivered. Planning on some fish yassa tonight, and I"m really looking forward to sampling the others soon.
Anyway: great business, lovely owner who will personally respond to your emails, nice intro to some underrepresented cuisine, and a high quality pantry substitute for cooking from scratch with ingredients you might have to otherwise hunt for. Recommended with the disclaimer that I've only tried one product, one time, but I'm optimistic:
www.kitchensofafrica.com