Peel and slice the ripe bananas.
Peel, core, and dice the apples.
In a saucepan, combine the sliced bananas, diced apples, and water.
Bring the mixture to a gentle simmer over medium heat. Cover and let it cook for about 10-12 minutes or until the apples are tender.
Optional: Add cinnamon for a touch of warmth and flavor. Stir to combine.
Remove the saucepan from heat and let the mixture cool for a few minutes.
Transfer the cooked bananas and apples to a blender or food processor.
Blend until smooth and achieve a velvety puree consistency.
Allow the puree to cool to a kid-friendly temperature before serving.
Serve the Banana Apple Puree in a bowl or as a topping for yogurt, cereal, or as a standalone snack.