Mince and Dumplings

Name: Mince and Dumplings
Ingredients: 1 tbsp vegetable oil; 1 large onion (chopped); 1 medium carrot (chopped); 1 1/2 pounds ground beef; 1 tbsp all-purpose flour (for thickening the beef mixture); 1 1/2 cups beef broth; 1 tsp Worcestershire sauce; 1/2 tsp fresh ground pepper; 1 bay leaf; salt (to taste); 2 cups all-purpose flour (for the dumplings (9 ounces)); 1 1/2 tsp baking powder; 1/2 tsp salt; 1/2 tsp rubbed sage; 1/4 tsp ground thyme; 1/2 tsp freshly ground black pepper; 6 tbsp cold butter; 1/2 cup water (plus more if needed)