here's a better shot of the sauce bottle, and the lyric kinda matches the scene on the bottle
Bat's Brew (Melange de la chauve-souris)
Bat flyin' high overhead
In the heart of the walking dead
The fire breathes from it's mouth
Melange de la chauve-souris
Hotter and hotter it will get,
No, it's not ready, do not fret
Your journey will go far south
Melange de la chauve-souris
The moon is full, the water dark
Tree limbs evil, missing bark
Makes twisted fingers for the sky
In the bat's brew you shall fry
Melange de la chauve-souris
If you partake of the brew
The Moon grows red in front of you
Just a drop is all you can do
Melange de la chauve-souris