2 T. olive oil
  2-4 T. chili powder
  1 T. ground cumin
Combine the three ingredients in skillet. When hot, stir over heat for a minute. Then add:
  2 chopped onions
  2-4 minced garlic cloves
Cook until they start to brown, 5 to 8 minutes. Then add:
  4 C. peeled, chunked sweet potatoes
  2 C. peeled, chunked potatoes
  1 1/2 C. dry roasted peanuts
  1/3 - 1 T. ground chipotle or two seeded, minced jalepenos
  1 can crushed tomatoes
  2 T. cocoa powder

Cook over low heat until the potatoes are tender. Add salt, pepper and water to taste. Garnish with fresh cilantro and lime wedges.