In the last year, Tim Hortons has treated cottaging Canadians to a boat drivethru, revived its beloved Dutchie doughnut and launched flatbread pizzas.

But perhaps its biggest surprise will come this summer, on the heels of its 60th anniversary on May 17, when it enters a realm so unexpected for a fast-food giant that even its executives expect some people’s first reactions to be, “What?!”