But despite its many benefits, can a microwave oven match its other cooking counterparts in all ways? But can a microwave oven cook a steak to a perfect medium-rare? AdvertisementHow Microwaves CookIf you're going to consider trying to cook a steak to medium-rare in a microwave, it's important to know how a microwave oven works. \"Microwave steak wins if you want the meat well done right through, without charring the surface. Spencer subsequently tested his observation with popcorn and an egg, and microwave cooking was born.