Generous But Ravenous

red stone portal lined with ash
snags the boots and snags the bag
presents topple to the pit
atop them, someone's Santa sits

astride the room is white temptation
he won't deny the sweet satiation
he stumbles, slobbering, to the milk
and guzzles it, no drop is spilt

but next to the now-empty flask
a plate for which he'd never ask
sneaking back the way of smoke,
he leaves no presents, just the note:

"unimpressed by orange roots
next time offer proper foods"

/* 14 lines, does not contain the letter C
* (unless I've missed one—please let me know)
*/