I made these because someone on a diet told me they've been longing to have a snack with texture and asked me to make something. These okara cookies don't become stale easily even after time passes. I came up with this good idea as I was repeatedly trying to make okara biscotti.
To approximate the amount of water...in Step 5 the dough should take a while to clump together (adjust it when you spread it out.) Since I like lightly sweetened snacks, I didn't add any sugar (there's already some in the milk cocoa powder), but if you want to sweeten it up, you can add 1 tablespoon of sugar in Step 2.