The BLT sandwich dates back to late Victorian Tea Sandwiches. The acronym, BLT comes from diner waitresses and cooks who abbreviated the sandwichs name at busy lunch counters across America. In its simplest form, the BLT brings together a delicious combination of flavors. To make my ultimate BLT you will need: thick-cut slab bacon - you can use turkey bacon for a leaner alternative, butter lettuce and arugula, red ripe tomato, your favorite bread, mayonnaise and blue cheese dressing. I think youll find that the tangy blue cheese and the aromatic arugula perfectly complement this already delicious taste combination.