It is bacon sandwiched between two pieces of bread.....here is a diagram:
B-----------B
---bacon--
B-----------B
...Now if you're feeling adventurous, you can go:
B------------B
lettucelettuce
----bacon----
cCuCuMbErc
B------------B
Or for the BEST SANDWICH EVER:
B-------------B
----bacon----
8=========D
B-------------B
B-----------B
---bacon--
B-----------B
...Now if you're feeling adventurous, you can go:
B------------B
lettucelettuce
----bacon----
cCuCuMbErc
B------------B
Or for the BEST SANDWICH EVER:
B-------------B
----bacon----
8=========D
B-------------B