Incredibly tender lamb with an amazing sauce.
Using sauté setting, heat Instant Pot. Once hot add 1/4 cup olive oil and thoroughly brown lamb on all sides – making sure to render all the fat. Once browned, remove lamb shanks and set aside.
Add onions, carrots, bay leaves, and remaining marinade to the pot. Sauté until onions become translucent – about 5 minutes.
Add stock. Lock lid and cook for 30 minutes at high pressure.
Once cook time is complete, allow pressure naturally release. Remove shanks and set aside.
Switch Instant Pot back to sauté setting and simmer until sauce reaches desired thickness. Return lamb to pot and let sit in sauce until ready to serve.
Serve lamb with polenta or mashed potatoes topped with gravy!
Serve with mashed potatoes, mashed sweet potatoes, or polenta.