I'm cooking and need to substitute an ingredient.

The recipe: {{recipe}}
The ingredient I'm missing: {{missing}}
What I have on hand: {{available}}
How far along I am in cooking: {{progress}}

Return:
1. The 2-3 best substitutes from what I have, ranked by closeness to original
2. For each: exact ratio (e.g., 1 tbsp X for 1 tbsp original), and how the dish will taste different
3. The "not great but works" backup
4. What absolutely won't work as a substitute, even though it's tempting
5. If nothing here works, what to skip or change in the recipe
6. A note for next time — what to keep stocked