Junction Hgwy 95 and 290
The Southside Market is the biggest barbeque market I've come across. Pretty smart too. They set up a Blue Bell Ice Cream dipping station - the Texas way to end any barbecue meal - assuming there is any room left for ice cream.
Southside does everything good, but they are justifiably famous for their Elgin hot sausage. Good loose pack, a bit of a kick and plenty of smoke.
Southside, in one form or another, has been around for over 120 years.