Cut the bacon into small pieces and put in a large sauce pot (cold, not preheated) and brown.
Turn down the heat, and add the onion and minced garlic and cook on low until soft.
Make sure the sheathing is removed from the shank, stab randomly all over with a small knife, and give a dusting of rub and garlic powder. Brown on all sides in the pot, then remove.
Deglaze the pan with half a cup of wine. Add half of the fresh chopped oregano and let thicken. Add the remaining half cup of wine and 1 cup of stock and a dusting of your low carb thickener.
Let it just begin to thicken then add the bacon and onion mix back in, stir to mix.
Put the browned shanks back in, turning to coat.
Sprinkle with the remaining herbs and give a quick stir.
Cover with a lid and cook for 1 1/2 - 2 hours, turning shanks and adding more stock (or wine) as the liquid disappears.
Once the shanks have been cooked through and are ready to fall off the bone, remove and cover with tin foil. Bring the remaining liquid up to a boil and once it has thickened, pour into your gravy boat for a nice rich gravy!