Preheat the oven to 350°F, ensuring it reaches the proper temperature for even baking.

Place the chopped apples into a medium-sized baking dish, spreading them out to form an even layer. In a separate small bowl, whisk together the melted butter or coconut oil with the cinnamon until well combined. Pour this fragrant mixture over the apples, then use a spoon or spatula to toss everything together, ensuring each apple piece is evenly coated.

Transfer the dish to the preheated oven and bake for 20–30 minutes, or until the apples turn soft and tender. Halfway through baking, give the apples a gentle stir to promote even caramelization. Once done, remove from the oven and let them cool slightly before serving. Enjoy warm on their own, or pair them with yogurt, granola, or a scoop of vanilla ice cream for an extra treat.