Also, different brands of nut or seed butter yield slightly different results, you can adjust as needed adding more nut butter or flakes until the mixture holds together nicely. (101cookbooks.com)
You can always add more nut butter, but this will increase the calories and fat. (thecreativebite.com)
To make them dairy - free, just omit the parmesan and use more nuts instead. (busyinbrooklyn.com)