In a pot, combine all ingredients, except flour, and cook on medium heat until almost done. About 30 minutes.
In a bowl, put your 4 tbsp of flour, add 3 tbsp of cold water and make a smooth paste. Then some hot broth from cooked vegetables to flour mixture. Then add this flour paste to cooked vegetables and let cook for 10 more minutes on medium heat.
Preheat oven to 350 degrees. Transfer vegetables to a casserole dish and top with biscuit balls. See below
Biscuit Topping: Meanwhile, in a bowl, combine flour, baking powder and salt. Using your fingers or pastry blender, cut in butter until mixture resembles coarse crumbs. Drizzle with milk and stir with a fork until a batter forms. Using your hands, roll batter into small balls ( about 2 inches/5 cm in diameter). Drop over hot vegetables.Bake for 20 minutes. Biscuits should be a light brown. Serve!