Sprinkle the pot roast evenly with the salt, pepper, paprika and onion powder and place the meat in the crockpot. Cover the top with the brown sugar, then add the beer to the crockpot and cover it. Cook on low for 8 hours. At some point during the 8 hours or before, roast the garlic
. Squeeze out the cloves of garlic and mash them on a cutting board with a fork. Remove the lid of the crockpot and using kitchen tongs or forks, shred and pull apart the beef. At this time, I remove any large chunks of fat or gristle too.