Peel, core and chop the apples into small cubes.
Add the apples and water to a saucepan and cook over medium heat for 8–10 minutes until soft.
In another saucepan, cook the rolled oats according to package instructions until creamy.
Combine the cooked apples and oats in a blender.
Blend until smooth, adding small amounts of water, breast milk or formula if needed.
Allow the puree to cool completely.
Pour the puree evenly into each compartment of your 4-compartment silicone freezer tray.
Cover with the lid and freeze for 4–6 hours.
Pop out individual portions whenever needed and serve after reheating.
