To make this gravy I just put a ham in my large stock pot. I added some water to it. As the ham cooks juice comes off of it and make great drippings for gravy. Then in a large glass I added some water and stirred in flour to make a paste. Stir really quickly with a fork to avoid getting lumps in your gravy. Bring the dripping to a boil and stir in the flour~water paste stirring all the while or you will get lumps! Heat back up to a boil. If your gravy is thin, add some instant (dry) potato flakes to thicken it up. I added pepper also. I served this with some ham cut up in the gravy on homemade mashed potatoes.