1Place the cubed pumpkin and orange juice in a small saucepan and bring it to a boil over medium-low heat. Simmer the pumpkin for 10 to 15 minutes, until it is soft. Carefully transfer to a blender, in batches if necessary, and blend until smooth.
2Melt the butter in a skillet over medium heat, and cook and stir the onion, garlic, chile, turmeric, cumin, nutmeg, and coriander for 1 to 2 minutes. Stir in the ham, and cook and stir for about 5 minutes, until the ham has started to brown.
3Pour the pureed pumpkin mixture into the spicy ham mixture, and stir the peanut butter into the sauce. Mix well to combine, and bring back to a simmer. Serve hot.