Making homemade pumpkin seed spread is hard work for your food processor. If you notice it’s getting too hot or starts to smell like the motor is overworked, turn it off and let the processor rest for a few minutes. It won’t harm your seed butter to give it a break and then come back to mixing. If your food processor can’t handle it, you may want to invest in a higher quality appliance. My Cuisinart food processor is getting pretty old, but still handled this really well. A high power blender like a Vitamix is another good option since I always like my appliances to serve more than one purpose in the kitchen.