Use fresh, ripe apples for your juice.  

Cut the apples into coarse pieces - you don't need to peel them or remove the cores, just use them as they are.

Place the apple pieces in a juicer and extract the juice.

Remove the foam from the surface - don't discard it, see the tip in the note on how to use the foam.

Bottle the apple juice and store it in the refrigerator.

Serve the juice ice cold - cheers!