Melt fat in cooker and brown meat. Place on rack in cooker and add seasonings and water. Cover and cook under pressure for 10 minutes. Reduce pressure with cool water. Add vegetables to cooker and cook under pressure an additional 5 minutes. Reduce pressure with cool water. Remove meat, vegetables and rack. Blend 2 tablespoons flour in 3 tablespoons cool water and add to gravy. Cook, stirring until thickened. Add meat and vegetables to gravy and serve in cooker.