“Is that coffee I smell?”/“It is, and you do.”

A coffee joke has been printed on an image, and this form was printed in Radio Life on February 23, 1947:
 
Husband (coming down the stairs): Dear, is that coffee I smell?
Wife: It is…and you do!
 
The answer means: (1) it is coffee and (2) you do smell. Authorship of the joke is uncertain, but it has been cited in print since at least 1946, when it was said by American comedian, actress, singer, and radio personality Judy Canova (1913-1983).
   
 
Newspapers.com 
21 April 1946, Kingsport (TN) Times-News, “Radio Roundup,” pg. 21, col. 1:
“My boy-friend came to see me the other night, and when he came in he said, ‘Is that coffee I smell?’ So I said, ‘It is and you do.’” Judy Canova.
   
Newspapers.com 
12 June 1946, Charlotte (NC) News, “New York Doings” by Earl Wilson, pg. 10-B, col. 5:
Then there was a scene where Fat Marco, comic, asked pretty Gaye Dixon, “is that coffee I smell?”
 
“Is is and you do!” she said, breaking them up—and me, too.
 
World Radio History
23 February 1947, Radio Life, “Gags of the Week,” pg. 12, col. 3:
Heard on “Whats the Name of that Song?”:
Husband (coming down the stairs): Dear, is that coffee I smell?
Wife: It is…and you do!
 
Newspapers.com 
22 November 1952 Democrat and Chronicle (Rochester, NY), “‘Ozark’ Vulgar, Gets Laughs At Opening” by Jean Walrath, pg. 6, col. 1:
Question: “Is that coffee I smell?” Answer: “It is and you do.”
 
Google Books
The Dude Martin Band Story
By Jim Goggin
Victoria, BC: Trafford Publishing
2005
Pg. ?:
Sample: Paw: “Hey maw, is that coffee I smell?” Maw: “It is-and you do.”
(Comedy from Judy Canova.—ed.)
 
Twitter

 
Twitter
Sam Rabone
@Samrabone
#worstjokewednesday @Musicalmissy “is that coffee is smell?” - “It is! And you do!”
11:35 AM · Mar 16, 2011·Twitter Web Client
   
Google Books
5,000 Great One Liners
Compiled by Grant Tucker
London, UK: Biteback Publishing
2012
Pg. ?:
I went into the kitchen this morning and said to the wife, ‘Is that coffee I smell?’ She said, ‘It is and you do.’
 
Twitter
Flatfoot Phil
@phouseal
“Is that coffee I smell?”
“It is, and you do.”
Fibber McGee
12:57 AM · Nov 7, 2013·Facebook
 
Twitter
Bob Kostic
@causticbob
I went into the kitchen this morning and said to the wife, “Is that coffee I smell?”
She said, “It is and you do.”
6:52 PM · Jun 16, 2020·Twitter Web App