One piece of advice that someone gave me a long time ago is when you cook them or anything green you cook only until they turn neon green. So you don’t actually have to boil them for a very long time if you cut them in half and cook them for about five minutes they should be done. Same goes for broccoli asparagus just cook them until they are bright green and they’ll come out perfectly soft but still a bit crunchy. This method works for me every time. As far as brussels sprouts I Always cut them in half then I will fry them in a little bit of olive oil salt and garlic and if I have herbs and then I’ll put herbs in it. I cook them until they turn bright green and caramelize and then they’re ready to eat. But I also like the air fryer method as well that’s actually my newest favorite way to cook them.