Let lamb rack sit at room temperature for 30 minutes
Move oven rack to 8" below broiler. Preheat oven to 450F.
Wrap the exposed bones in aluminum foil ( so they don't burn - see pic).
There should be a layer of fat on the top of the rack of lamb - leave it there.
Mix all ingredients in a bowl and rub on rack of lamb, making sure to get the sides and beneath and/or around the layer of fat.
Cook fat side up in a roasting pan or a jelly roll pan ~ 20 minutes for rare (internal temperature ~125F) or 25 minutes for medium rare (internal temperature of ~135F).
Rest lamb rack 15 minutes loosely covered in aluminum foil before slicing.
Add salt to taste. Serve with mustard if ya like. Happy Eating! Beckie
Notes
Remember that it is always better to undercook tender cuts of meat like rack of lamb. If it's undercooked, stick it back in the oven or pan sear the sides for a crispy crust (YUM!).