Intra company(same Co Cd)sale between plants w/different profit centers

What is the correct process for the following: Intra-company sale, within the same company code, from one plant/profit center to another plant/profit center? I realize that pricing/billing is not used within the same company code, but how do I allow the selling plant to recognize a "profit" on intracompany sale just as they would recognize a profit on a 3rd party sale. Appreciate experiences and responses.