I have been using "Mini Train-Me!" and our basenji LOVES THEM! We have the chicken flavor but their are other flavors as well! you can find it on amazon and Walmart. It is in a yellow package.
While their products are "manufactured" in the US, they are not sourced here. I never give my dogs anything that is not clearly from US, Canada, New Zealand or safe meat producers.
A good hint is that if they don't SAY they are US Sourced, they aren't.
We are bringing home our first Basenji in a few weeks, and found Zuke's treats which is what we'll be using. All natural and US or New Zealand sourced.
I like Zukes. Also Butler Lean Treats Nutritional Rewards for Dogs (Henry Schein, but actually made by Biljac who says USA source meat).