Step 1

Turn the Instant Pot on to sautee and allow to heat. When it shows "HOT", add the oil.

Step 2

While Instant Pot is heating, carefully cut small slits all over the lamb roast. Press a garlic clove into each cut and push in.

Step 3

Cover the roast with the salt, pepper, and rosemary.

Step 4

Place fat side down first, and sear each side of the lamb roast 5 minutes. Remove from Instant Pot and add the trivet.

Step 5

Pour in broth, and add lamb roast back in, placing on trivet. Cover Instant Pot and make sure valve is set to "seal".

Step 6

Push the button for manual, and set for 10 minutes per pound for medium rare. For bone in, allow for 15 minutes per pound for medium rare. Allow pressure to release naturally.

Step 7

Remove from Instant Pot, and allow to finish resting off the heat for an additional 5 minutes before slicing.