My grandfather has had a cactus growing in our backyard since I can remember. He would slice off a paddle and then carefully cut off all the spiky needles. I would sit and watch him slice up his nopales and then boil them. He would add a spoon to the pot, then go to me and say “they’re less slimy if you add a spoon to the boiling water.” Once he had his nopales nice and tender he would add them to eggs with a little bit of tomato and eat them with a corn tortilla. That’s exactly how I eat them today. The only difference is I buy my nopales already made. No need to hassle with needles or spoons!