Put 1 sliced onion in bottom of crock pot.
Sprinkle pork loin with salt, pepper, and garlic powder.
Place on top of onion.
Top with more onion slices.
Mix: 1 cup hot water
2 Tbsp. soya sauce
Pour over meat.
Add 2 bay leaves to the water.
Cover and cook on low for about 10 hours.
Thicken gravy with corn starch and water.