Acrostic: a form of poetry where the first letters of each line, read downward, form a word.

Sourdough bread, toasted
Aioli, with garlic, roasted
Now red onion, sliced, wispy
Double smoked bacon, just crispy
Wilt spinach, with balsamic vinegar
In preparation for the big finisher
Smoked salmon, layered on thick
Here are capers, for lemony kick
Easily proving the adage through
Sandwishes really can come true!