Rhubarb strawberry crumble

Well don't know if I can say this was a huge success. Missed a couple of ingredients... Arrowroot powder I could not find at all and I thought I had cinnamon but nope! 

The crumble part was good, but the rhubarb part a bit too sour. 

Had to try to do something with the rhubarb I had in the garden

Some rhubarb facts: The stalks are rich in several B-complex vitamins such as folates, riboflavin, niacin, vitamin B-6 (pyridoxine), thiamin, and pantothenic acid

Here is the original receipt if anyone wants to try. 

http://pinchofyum.com/paleo-strawberry-rhubarb-crisp