Rhubarb Slush

I think everyone’s grandparents had a rhubarb plant or two. Early summers would be filled with rhubarb pies and rhubarb crumbles, and if you were lucky you’d get rhubarb sorbet.
Rhubarb (also called a “pie plant”) can commonly be found at farmers’ markets this time of year. In Manitoba, the season for rhubarb has just peaked. [...]