Pressure Cooker Pot Roast

1. BROWN THE BEEF AND ONION in oil in the open pressure cooker.
2. Add salt and pepper, 1/2 cup wine, seal cooker and cook at 10 pounds pressure for 15 minutes per pound.
3. Reducei pressure, open cooker and remove meat.
4. To make gravy, remove all but 2 tablespoons fat from the cooker, add the flour and stir for 1 minute, then slowly add the wine and stock and simmer for a few minutes until thickened.
5. Seasoni gravy with salt and pepper to taste.