Whenever I’m craving a customizable, healthier snack with a satisfying crunch, popcorn is my go-to. That’s why I keep a container of kernels in my pantry at all times. It’s also low-calorie, low-fat and 100% whole grain, making it a rewarding source of fiber for your gut health. Air-popped popcorn is even better, as it doesn’t require oil. However, since I don’t have a popcorn maker, I make mine on the stovetop with high-oleic sunflower oil. But last time I prepared this snack, I just happened to glance over at my air fryer and wonder: Could I make popcorn in there? My internet search for an answer led me to a dead end, as some sources say you can make popcorn in an air fryer, while others fervently caution against it. So I decided to go straight to the source: an air fryer manufacturer and professional chefs. I reached out to Ninja, makers of the Ninja Crispi, CNET’s pick for the best air fryer overall.…