There was a time, especially in the South, when you could always find it at the grocery store. Of course, times have changed, and it can be a little more challenging these days, but I have found Wonder Texas Toast bread advertised online at Publix and Great Value Texas Toast at Walmart. If you can't find bread specifically labeled Texas toast, these options are all good substitutes: Sara Lee Artesano Original, Nature's Own Perfectly Crafted Thick Sliced White, or Nature's Own Perfectly Crafted Thick Sliced Brioche Style.