1. Melt the butter along with the oil in a Teflon fry pan. Add the onions and spices, and fry over high heat, just until the onions begin to brown, about 5 minutes.
2. Add the sliced onion, blacken, pepper, salt, and port.
3. Saute on high, until the onions are almost done, and the wine is reduced, about 6 minutes. This can be done well before you're ready to serve.
4. To Serve:
Reheat over med high heat just until the onions are warm. Serve immediately.