Cuts out cookie dough very well, can't make any claims about the taste of the final cookie though!
As with all cookies, I recommend chilling the dough before cutting so it holds its shape better.
Probably should recommend only using "food grade" PLA and a "food-grade" extruder!
The walls are a decent thickness (2mm thinned down at the sharp end) so you should be able to scale the design up or down.
If you make one, please share your makes and finished cookies!