In large soup pot, add 2 tablespoons of vegetable broth, onion, pepper, and garlic. Cook over medium-high heat until onion and pepper are soft.
Reduce heat to medium. Add cayenne pepper and cinnamon. Cook 1–2 minutes longer.
Add water, sweet potato, spinach, corn, tomato paste, diced tomatoes, and zucchini. Bring the mixture to a boil, reduce heat, cover, and simmer for 10 minutes or until potato is easily pricked with a fork. If necessary, add more water.
Stir in peanut butter, salt, and pepper. Cook over medium heat for 5 more minutes.
Serve over cooked sorghum.