Place a steamer basket in a large sauce pot and pour in just enough water to see through the basket.

Bring the water to a boil by placing a lid on the pot.

Cut carrots into about 1 inch chunks.

Once water has come to a boil, remove lid and add apples and carrots.

Cover and let steam until tender (about 20 minutes or so.)

Place tender carrots and apples into a food processor or blender and puree until smooth. Add water until you've reached your desired consistency. (I added about 1 cup.)

To freeze: place puree in ice cube trays.

Once frozen, remove from tray and place cubes into a zip lock bag to store.