The recipe wants [an ingredient]
and I don't have it. What to use
from [what I have], what the
substitution changes, and when
there's genuinely no substitute
worth making.

What Can I Substitute?

Says plainly when there's no real substitute.

Prompt

A recipe calls for [an ingredient] and I don't have it. Tell me what to use instead given [what you do have], what the substitution changes about the result, and when there's genuinely no substitute worth making.