It's just unflavored gelatine and a bit of milk to make it a wet paste, microwaved for a 15 seconds. My only changes was that (like everything), I didn't measure very exactly and it turned out fine. Also, you don't need a disposible cup, as it washes out easily when warmed up, and you can just apply it with your finger. Also make sure to apply it thickly, and avoid your eyebrows if you intend to keep them!
What natural ways have you found to keep your face clean and clear?