01 -
Add frozen meatballs to slow cooker.
02 -
Mix hot sauce, honey, brown sugar, and mustard in a bowl until thoroughly combined.
03 -
Pour sauce over meatballs and stir to coat well.
04 -
Cover and cook on LOW for 2.5-3 hours or HIGH for 1 hour, stirring occasionally.
05 -
Serve hot, garnished with fresh parsley if desired.