I have found waffletopia: Waffle Iron Cafe at 5181 Keller Springs in Dallas right next to the tollway. M-F 6:30- 3:00, Sat 7-3 Sun 8-3
Got there near closing, but I was graciously ushered in by staff, and a wonderful waffle arrived at table in mere moments. Good stuff. I think they must make their batter like the Belgians, as opposed to the eggier version Americans seem to prefer. Yum. They also include other breakfast and lunch/sammy-type stuff on the menu, but I beelined for the waffles, natch. I don't know how it is when it's crowded, but for a brunchy-type thing, I find this to be SOOOOO much better than other breakfast-type non-diner options in the area.