Quarter butternut squash lengthwise
Cut Stem off
Scoop out seeds
Pour apple juice in slow cooker
Combine butter, brown sugar and cinnamon in small bowl
Place 2 of the squash quarters (cut side up) in slow cooker
Drizzle half of the brown sugar butter mixture on squash
Place remaining 2 squash quarters on top of first ones and drizzle with remaining brown sugar butter mixture
Cover and cook on LOW for 6-8 hours (or until squash is tender)