Pork Belly Tacos and Avocado Cream

Name: Pork Belly Tacos and Avocado Cream
Ingredients: 2-2.5 lbs pork belly cut into 3x1½ slices; 1 tsp sea salt; 1 Tbsp coconut sugar optional; 1 tsp cumin; 1/4 tsp black pepper; 1 large white onion sliced; 3 cloves garlic whole; 1/4 cup apple cider vinegar; 2½ cups chicken stock; 1 cinnamon stick; 2 bay leaves; 1 tsp dried oregano; 1 chipotle canned in adobo sauce (or 2-3 depending how much spice you like); ½ cup tapioca starch; Oil for searing avocado, coconut, grapeseed or pure olive oil