What Is The Best Way To Freeze Fresh Rhubarb?

First and foremost, rhubarb leaves must be discarded. Washington State University’s Master Gardener Program notes that the leaves of rhubarb contain oxalic acid and cause severe poisoning, though, interestingly, they can be safely composted. BBC’s Good Food explains that rhubarb, regardless of how it’s handled before freezing, will begin to break down as it’s thawed, so while the flavor will still be wonderful, it won’t be as pretty as fresh rhubarb that’s neatly cut and artfully arranged atop a tart.

Rhubarb can be blanched or even fully cooked before freezing, but the very best way to freeze it is actually the simplest. Wash and chop your rhubarb, placing it into plastic freezer bags in a single layer. Put the bags flat on a baking sheet and freeze. That’s it! Once the bags are frozen, they’re easy to stack in the freezer, and you can either use the entire bag or break off the amount your recipe calls for. It’s not even necessary to thaw rhubarb before it goes into an impressive dessert like this strawberry rhubarb custard tart.