1 (organic) apple
½ (organic) lemon
Zest the lemon and put zest and juice in a bowl. Cut up the apple into very thin pieces. Mix everything thoroughly, cover the bowl and leave in the fridge for an hour marinating. You can however eat them straight away if you want to. Either drain apples from the leftover lemon juice, or simply leave it all together, depending on how sour you like the outside of the apples to be. Eat and enjoy!
You can mix a bit of pure vanilla powder in the lemon juice for an even more candy-like taste.