
For Crumb Crust + Topping:
For Rhubarb Filling:
This recipe was tested using Diamond Crystal coarse kosher salt. If you use Morton's kosher salt or fine salt, decrease the volume by half.
Tapioca starch can be found in the baking aisle at the grocery store, usually near the cornstarch. It’s a thickening agent that works similarly to cornstarch, but leaves the rhubarb filling more clear. Cornstarch can be used in its place in the same quantity, if needed.
If almond flour is not available, sliced almonds can be substituted in equal weight. Process the mixture in the food processor, without the sugar or extract in step 2 first until it's a sand consistency. Then, proceed with the remaining instructions.
Find it online: https://everydaypie.com/rhubarb-pie-bars/