Heat oil in a large soup pot over medium heat.
Add onion, garlic and jalapeño.
Sprinkle with salt and pepper, and sauté until soft, 5-7 minutes.
Season chicken and add to the pan.
Cook for a few minutes until it begins to brown.
Add 1/2 cup peanuts, sweet potatoes, tomatoes and chicken broth.
Bring to a boil, cover and simmer for 15 minutes.
Stir in chard and cook an additional 3-4 minutes.
Stir in peanut butter.
Turn off heat.
Serve over rice, garnished with cilantro and crushed peanuts.