In 3.5 or 4 litre crockery cooker: stir together barbeque sauce, jelly, tapioca and vinegar. Cover; cook on High heat setting while preparing meatballs.
For meatballs, in large bowl combine egg, bread crumbs, milk and garlic salt. Add ground turkey and mix well. Shape into 0.5- 0.75 inch meatballs.
Spray a 30 cm non-stick skillet; add meatballs and brown on all sides over medium heat. Drain meatballs. Add meatballs to crockery cooker; stir gently. Cover; cook on High heat setting for 1.5 to 2 hours.
Makes 30 meatballs.
NOTE: For 5 or 6 litre crockpot: Double all ingredients. Prepare as above. Makes 60 meatballs.