One of the best that I’ve had was at Twisted Root Burger Co in Dallas. I had their All American, Treat Yo Self fries and Watermelon sweet tea. They also have exotic burgers such as camel and wild boar. The exotics change each day. I believe they make root beer in house. The best burger was a blue cheese patty from 1907 Meat Company in Stillwater. My daughter cooked it on charcoal grill. Sadly, 1907 is no longer in business.