Slow Cooker BBQ Pulled Chicken - Cooking like a Boss

6 chicken breasts		stir together and cook on high for 3-4 hours or low for 6-7 hours	shred chicken with two forks and stir back into sauce
1.5 cups 0.355 l 355 ml 0.625 pint 23.7 tbsp 71 tsp BBQ sauce
0.5 onion	finely chopped
1 tbsp 0.015 l 15 ml 3 tsp 0.063 cup 0.026 pint worcestershire sauce
2 tbsp 0.03 l 30 ml 6 tsp 0.127 cup 0.053 pint brown sugar