BLTA BLT is a type of bacon sandwich. The standard BLT is made up of five ingredients: bacon, lettuce, tomato, mayonnaise, and bread. The BLT evolved from the tea sandwiches served before 1900 at a similar time to the club sandwich, although it is unclear when the name BLT became the norm.
The above text is a snippet from Wikipedia: BLT
and as such is available under the Creative Commons Attribution/Share-Alike License.