Question

What was sarsaparilla and where was it offered to the sebastian

Answer 1

Sarsaparilla was a drink made up of Sarsaparilla roots. It was not offered to Sebastian it was offered to Michael.
The question seems a bit wrong to me.

Answer 2

Sparsaparilla is a soft drink made out of dried roots of sassafras tree . It is red in colour, fizzy in nature . It was offered to Michael in the saloon while he was playing the game"Wildwest" .