Kumquat Beef

The boy and I have a habit of picking up random things at the grocery store, including, once, prickly pear fruits (hint: don't touch with your bare hands or try to eat straight!). One item the boy purchased recently was kumquats--and he immediately regretted it. I did not try it, so I can't verify the claim, but he said they are all but impossible to eat raw. So, when I found a fairly quick beef dinner that used kumquats, he was happy to relinquish his kumquat rights for the greater, and yummier, good.