BLT

A BLT is a type of sandwich, named for the initials of its primary ingredients, bacon, lettuce, and tomato. It can be made with varying recipes according to personal preference. Simple variants include using different types of lettuce or tomatoes, toasting or not, or adding mayonnaise. More pronounced variants can include using turkey bacon or tofu in place of bacon, removing the lettuce entirely, or adding other ingredients such as a fried egg, avocado, or sprouts. Although its ingredients have existed for many years, there is little evidence of BLT sandwich recipes before 1900. In the 1903 Good Housekeeping Everyday Cook Book, a recipe for a club sandwich included bacon, lettuce, tomato, mayonnaise and a slice of turkey sandwiched between two slices of bread. While the 1928 book Seven Hundred Sandwiches by Florence A. Cowles includes a section on bacon sandwiches, the recipes often include pickles and none contain tomato.

Source: Wikipedia