Preheat your oven to a temperature of about 350°.
Coarsely grind the coriander seeds, the cumin seeds, the fennel seeds, and the red pepper flakes into a spice mill or with the use of a mortar and a pestle.
Gently crumble the saffron into the mixture of the spice, if using it, and stir in about1 tsp of kosher salt with the black pepper taste
If you notice any layer of enrobing shanks, remove it by cutting a little at the right at the edge; then pull at the corner
Make sure not to remove the iridescent membrane below it
Sprinkle the meat shanks with the mixture of the coriander and let rest for about 30 minutes or up for an overnight
rest at least 30 minutes or up to overnight.
About thirty minutes, right before cooking; dredge the lamb shanks into the cornstarch; make sure to shake off any excess of fat
Heat the oil into a large heavy braising dish or in a Dutch oven over a medium heat; then add in the shanks and cook on all the sides for about 10 to 12 minutes
Transfer all the lamb shanks to a baking dish; then add in the onion, the carrots, and the leek to a pan
Cook while stirring and scraping any bits of meat that may have accumulated
Add in the cinnamon and the thyme; then pour in the pomegranate juice and the stock.
Scrape the pan again, then bring the mixture to a simmer and return the shanks to the pan; then season with the kosher salt and the black pepper.
Cover the pot and transfer to the oven; then braise for about 1½ hours, then check the liquid level, making sure that there is about 1 inch of stock in your pan
You can also add water to the mark and keep braising until the meat becomes tender and starts falling, for about 2½ hours.
With the help of a slotted spoon, transfer the meat and the large chunks of the vegetables to a plate; then discard the thyme and the cinnamon stick.
Using a spoon, skim off as much fat as possible from the surface; making sure to tilt the pan a little
To serve, bring the liquid slightly to a simmer and cook the meat and the vegetables until everything is warmed through very well
Serve and enjoy your Lamb chops and Eid Mubarak!