Bambino Huey is served in two San Antonio Italian restaurant that I know of. One is great, called Bacone's. Great Italian food and owner is from Connecticut.
The other is:
B.H. is available in some San Antonio and Austin supermarkets. It comes in a box with the picture shown on the menu in the link. There is also a description of what it is. It is a unique cake/cream dish served warm or hot. It is a dessert that must be experienced.