First, add the chopped carrots to a pot of water. On a stove top, bring the water to boil. Lower the heat somewhat, but keep it boiling a little. Cook until carrots can easily be poked with a fork. About 15 - 20 minutes. Drain the carrots and let them cool off.
Peel and chop your apples. (I usually do this while the carrots are boiling.) The skin can be left on the apples, but if you're feeding this to a baby, it's best to remove.
Add just the apples to a food processor and blend until it turns into apple sauce.
Then add the carrots and ground flax and blend again. It should be all mixed together.
Scoop the mixture into the individual glass jars and then store in freezer.