You wouldn't know the difference.
2 seconds sound clip from the All Through the Night (1942) movie soundboard.
You can hear this line at 00:03:54.954 in the Blu-ray version of the movie.
Quote context
[...]
- Bring me my coffee and cheesecake, Louie.
- Yes, Mr. Donahue. Right away, sir. Cheesecake for Mr. Donahue..
- Plenty, but not from Miller's bakery.
- What are we going to do? He only likes it from Miller's bakery.
- Give him the national cheesecake. It's a reasonable facsimile.
- You wouldn't know the difference.
- Incidentally, Samson is twirling for the tigers today.
- Incidentally, Samson's got a glass arm.
- 5 yards on the yanks. OK, boss.
- You better get those bets down.
[...]