Get out and measure your ingredients. Using a sharp knife, trim any excess fat and sinew, then season the lamb generously with salt and pepper on all sides.
Prepare the sous vide. If you are using your instant pot, fill the pot up to the fill line (roughly 10 cups of water).
Rub 1 tablespoon of olive oil on top of the lamb rack. Season generously with the herbs and minced garlic.
With a sheet of foil, gently wrap around the end with the exposed bones to prevent them from breaking.
Place the seasoned lamb rack into a plastic resealable bag.
Add 1 more tablespoon of olive oil and seal the bag, pressing as much air out as possible.
Gently submerge the bag into the top of the instant pot or sous vide and cook for roughly 2 hours, or until your desired internal temperature. Carefully remove the lamb rack from the bag and pat dry with a paper towel.
In a cast iron skillet or frying pan, heat the remaining 2 tablespoons of olive oil. Feel free to put some additional herbs in the skillet as well to give a boost of flavor.
Place the rack of lamb (meat side down) into the pan and sear for 1-2 minutes per side, or until it has a nice caramelized texture. Season with salt and pepper.
Remove from the pan and let the meat rest for 5 minutes before slicing. Serve with your favorite roasted veggies or leafy green salad. Serve and enjoy.