Start by preheating your oven to 350°F (175°C).
Take care of the lamb shanks by washing and patting them dry. Season these beautiful cuts with salt and pepper. Make them feel special.
In a large, ovenproof pan, heat some olive oil over medium-high heat. Sear the lamb shanks on all sides until they turn a beautiful golden color. This takes a few minutes. Once done, transfer them to a plate, cover with foil, and keep them warm.
In the same pan, it's time to prepare the base for your dish -Add chopped - Onion,Celery, Carrots, Garlic, Red Chilies, Thyme, Rosemary, Bay Leaves, and Tomato Paste - Stir it all together to create a flavorful mixture. Return the seared lamb shanks to the pan and pour in the chicken broth. Let it come to a boil.
Once it's boiling, cover the pan with a lid and place it in the preheated oven. Let it cook at 350°F for 2 hours, allowing the flavors to meld and the lamb to become tender. This is the easy part; just let the oven do the work.
While the lamb shanks cook, prepare your side dish. We recommend creamy mashed potatoes, but you can choose your favorite side.
When the lamb shanks are tender and ready, carefully transfer them to a separate plate.
Strain the sauce from the vegetables and herbs, then place the pan back on the stove.
Bring the sauce to a boil over medium heat. Turn off the heat and add a knob of butter. Stir until the butter melts into the sauce, making it glossy and rich.
Now, it's time to serve your dish. Place the lamb shanks on a bed of creamy mashed potatoes. Garnish with fresh herbs and pour the sauce over the top.