Preheat oven to 350.
Mix together flour, salt, and pepper.
Heat oil in a dutch oven over medium-high heat.
Dredge meat in small batches and brown in oil.
Remove browned beef and set aside.
Add Onion to pan and cook until golden (about 5 minutes).
Add Guinness and garlic and scrape browned bits from the bottom of the pan.
Add back browned beef and the remainder of the dredging flour and bring to a simmer.
Then, add the beef stock, tomato paste, brown sugar, thyme, and Worcestershire sauce.
Place in the oven for 2 hours or until meat is fork-tender.
Add in carrots and return to oven for 1 hour
Add potatoes and return to oven for 1 hour or until potatoes are cooked through.