Optional--add a dollop of alcohol (nothing sweet, no grain--use wine or bourbon).
Add a dollop of soy sauce or liquid amino acids, and all spices to taste.
This should be thick like a stew, not soupy and orangey, and not red (which means not enough peanuts). Let it boil about 1-1.5 hours. Or put everything in the instant pot for about 2 minutes, if you've pre-baked the sweet potatoes.
Notes
For the nightshade-free version:
Substitute beets, umeboshi and tamarind paste for the tomatoes and red bell pepper.