Season pork with salt and pepper.
In a large Dutch oven, heat 3 Tbsp. olive oil over medium heat. Add the pork in batches and cook until browned on all sides, about 6-7 minutes. Transfer to a bowl.
Add remaining 2 Tbsp. olive oil and onions to the Dutch oven and cook until translucent, about 5 minutes. Add garlic and thyme and continue to cook for 2 minutes. Add flour and cook for 1 minute.
Add the ale and bring to a boil. Boil for 1 minute, then add the broth, brown sugar, the pork and any juices to the pot. Bring to a boil. Reduce heat and simmer, partially covered until the pork is very tender, about 1 hour 15 minutes.
Add the 8 cups of vegetables and apples and bring to a boil. Reduce heat and continue to cook, partially covered until the vegetables are tender, about 30 minutes.
If you like your stew a little thicker put 1 Tbsp. all-purpose flour in a small bowl with 4 Tbsp. of the stew broth. Whisk together. Add this mixture to the pot and stir until well combined. Continue to cook for 5 minutes.
Add salt, pepper and parsley. Serve in bowls.