Cooking Prime Rib Of Beef How Do They Make Slow Roasted Prime Rib Roast (beef) Rare?

How do they make slow roasted prime rib roast (beef) rare? - cooking prime rib of beef

I do not understand how (the gun, she) slowly roasted rib roast beef makes, is still pink?

I love rare meat. The other night, I thought, to a grilled roast slow, but all is not rosy in the middle.

I tried, recipes / cooking instructions on the I-net, but could find none.

Has anyone good ideas?