Original, as far as I know. Correct me if you know otherwise.
Q: How do you program a computer to make beef stew?
A: You use bullion logic.
As bad, but not as good:
Q: How do you solve a math equation involving beef stew?
A: You use bullion algebra.
Edit: For those of you who got here by searching for “bullion logic” what you’re actually searching for is boolean logic.