The Cuban Lunch had nothing obviously Caribbean about it except, maybe, that it contained sugar. And there remains considerable debate about its recipe, including discussion on a Facebook group devoted to the revival of this chocolate and peanut delight.

“That’s one of the mysteries that remains unsolved,” said Professor Thiessen, who was unable to obtain the definitive recipe even from the last Paulins plant manager.

Can Canada Letter readers crack this case? Do you know the one and true Cuban Lunch recipe? Do you know how it got its name? Is there a Canadian snack food that’s disappeared but that you still pine for? And is there a uniquely Canadian, commercially made snack where you live that the rest of the country should know about? (Let’s exclude baked goods like the Joe Louis.) Please send your answers along to nytcanada@nytimes.com.

Professor Thiessen’s book is highly informative, filled with nostalgia and amusement. But it’s an academic history, so you may find yourself skipping over some abstruse sections to get to the sweet and salty bits.

Centre Ice

The distance between the arena in Sault Ste. Marie, Ontario and the hotel where Givani Smith of the Kitchener Rangers is easily walked. But racist threats meant that he had to travel in a police cruiser.

Trans Canada

—Dan Bilefsky has traced how Alexandre Bissonnette went from being “a mousy and soft-spoken chess-obsessed student from a middle class family” to someone obsessed by “far-right, mass killers, Donald Trump and Muslims” who ultimately a killed six people in a Quebec City mosque last year.

—Team names and mascots based on stereotypes of Indigenous people have pretty much vanished in Canada. But the offensive practice thrives in Europe. In England, fans of the Exeter Chiefs, a rugby team, call themselves the Tribe in an online group, communicate on a message board called the Pow-Wow, drink in stadium bars called Wigwam, Cheyenne, Apache, Mohawk and Tomahawk and are led in “tomahawk chops” by a mascot named Big Chief.

—Ninalee Allen Craig, who was the subject of an iconic photo taken in Florence in 1951 by Ruth Orkin, died in Toronto, her longtime home, last week.

—Charlie Russell, a self-taught naturalist from Pincher Creek, Alberta, who studied grizzly bears by living with them, died in Calgary on Monday because of complications from surgery. Mr. Russell long urged people to seek coexistence with bears rather than dealing with them in fear.

—In Opinion, Bari Weiss analyzes the Intellectual Dark Web, a collection of thinkers including Jordan Peterson of the University of Toronto, whose ideas “have met with outrage and derision.”