In a large bowl, toss your stew meat with 1 Tblsp. oil. Coat well. Set aside.
In a small bowl season the flour with salt, pepper, and cayenne. Sprinkle over the meat and toss well to coat evenly.
Heat remaining oil in a large skillet. Add meat and Heat remaining oil; brown meat on all sides. Add onions, garlic, and tomato puree. Cover and cook 5 minutes. Remove meat to a medium stock pot.
Pour a small amount of Guinness to your pan and Slowly add a small amount of stout to the pan and dissolve caramelized juices. Pour this over the meat and add the rest of the stout. Bring to a boil and add carrots & thyme. Cover and simmer 2-3 hours.