Sear the roast in the Dutch oven, being sure to brown all sides. This may take about 10 minutes or so.
Pour the chicken broth over the roast.
Add the sliced onion, minced garlic, potatoes, and carrots all around the roast.
Cover and bake at 350°F for about an hour, or until it reaches an internal temperature between 145° to 160°F.
Once your roast and vegetables are fully cooked, you can make a simple gravy. You can make it right in the same pan after removing the contents, or in a different skillet.
Whisk together the pork broth and flour over low to medium heat.
Then add water, salt, and pepper to the broth mixture, and constantly stir until the gravy starts to thicken.
Once the gravy has thickened enough to form a gravy, it's ready to eat.
Pair the gravy with the pork roast and vegetables.