Cut the pork tenderloin into chunks, salt and pepper the pieces and roll in the flour. Add the oil to a dutch oven and when it is hot brown the tenderloin. When it is browned remove it to a bowl, cover and put in the fridge. Add the celerly and onions to the pan and saute for a couple of minutes. Add the carrots and the water or chicken broth. Let cook until vegetables are tender. (about 30 minutes)
Add the remaining vegetables and the meat back into the pot. Cook for 15 minutes, then thicken with the flour and water. Adjust seasonings to taste.
Recipe by Recipes Food and Cooking at https://recipesfoodandcooking.com/2012/02/08/pork-tenderloin-stew/