Dissolve jello in boiling water
Add cold water OR ice cubes
Stir thoroughly
Refrigerate, stirring occasionally, until jello begins to set
Peel and dice apple finely
When jello is just beginning to set, add the diced apples
Continue to allow jello to set, stirring occasionally
When apples are settled into the jello and not just floating on the top, stir once more
Refrigerate until ready to serve.