I have tried to make my own sunflower seed butter in my food processor, but even after a looong time in the processor and a fair amount of canola, I still get a "paste" so thick you can slice it! What am I doing wrong? Do I just need a better processor? We haven't retried pumpkin seeds yet - she got hives from it about a year ago when we first tried it. I'll probably wait until pumpkins start showing up in stores so I can get truly uncontaminated seeds. Thanks!