Update 2017 - the building in which this business operated has been razed. The business has moved to 5631 W. Bellfort (@ Chimney Rock) and now is known as Tamales A Mano.
I was headed up South Post Oak one day recently when I caught sight out of the corner of my eye of a large banner proclaiming 'hand made hot tamales, now open.' It took a couple of turns and a couple of Uies before I was able to get into the parking lot (you have to be headed north on Post Oak just south of West Bellfort) only to find they actually weren't open, but I did see the bales of corn shucks stacked in the windows and knew I had to come back.
This is a new store-front and tamale factory for Houston-based Tejano Salsa and Tamale Company, offering about a dozen varieties of hand-made tamales. I had never even heard of them before and they aren't in my neighborhood grocery store but here they are with a full line of salsas, cheese dips and more.
When I was able to catch them open they were still in a very rudimentary operating mode. They have frozen tamales and hot tamales, by the half dozen or dozen. I got a half dozen of the pork with salsa verde in a cry-o-vac pack, steaming hot, for $6. They were large, about 4 oz each, tasty, with shredded pork. The masa itself was dry for my taste - I like very moist tamales - but good, nonetheless.
Besides tamales they have the complete line of their salsas and dips and some sodas. There are no tables but I was told they hope to add plate lunches in the future to their offerings.
I see from their website their tamales have previously been available at Spec's.
Tejano Salsa and Tamales