Yes, it is possible to bake tostones if you don't have an air fryer. To bake these Colombian-inspired tostones, preheat your oven to 400°F and slice your green plantains into rounds. Brush both sides of the rounds with oil and sprinkle them with salt before placing them on a baking sheet lined with parchment paper. Bake them for about 15-20 minutes, flipping them halfway through. The bake time may vary depending on the thickness of your tostones, so keep an eye on them to prevent them from burning. Baking tostones is a healthier alternative to frying, but keep in mind that they may not be as crispy as traditional fried tostones. However, they are still delicious and can be enjoyed as a snack or as a side dish to accompany your favorite Latin meals.