Add water to the pot along with apple cubes and cook till they get soft.
Puree them in a food processor. You can add a little water at this stage if it's too thick.
Add the puree to the cereal and mix it with water or formula or breast milk to achieve the required consistency.
Serve.
Recipe Notes
You can use any baby cereal with this recipe. (Oats, Rice, whole grain etc)
You can steam apples as well.
I have used Red Delicious Apples in this recipe since they are quite sweeter.
Do not discard the water in which the apples get cooked. Use it for other recipe or to achieve the required consistency for feeding as it has all the nutrients of apple.