OK, I’ll spoil it. But it’s still worth reading.
In Ancient China…
1. Farmer’s barn burns down with pig inside
2. Son accidently pokes finger into cooked/burnt pig
3. Son licks burnt fingers and discovers excellent taste
4. Repeat of #2 and #3 - done on purpose
5. Rest of family converted after some plot development
6. Family and other farmers start burning down barns with pigs inside
7. Profit!!!