Meaning of a Dutch Expression?

[PeterHe]

What does this Dutch expression mean and what is the context to use use it?  "Ik heb een boontje voor jou"

Thanx

[Organarchist]

I am not sure if I am missing anything here, such as a colloquial use of the phrase.  The translation for the most part is quite simple, using an online translation engine (OTE 8.0), I got everything except the "Boontje."

 = I have a/one "boontje" for you.

Boontje, I found on a baby clothes company means a "little bean".

All together now, "I have a little bean for you".  NOw I am dying to hear the context.

[PeterHe]

Response to Organochrist.  The expression I believe is an affectionate one but I would like to know how it is used.  But like a lot of Dutch sayings you can't read it literally which is why the translation engines are of no help.

[bernardo]

-tje is the diminutive ending, so boon = bean.  I would guess it's just a general thing like "I've got a little treat/ present/reward for you"

[sammylane]

Do you thik it's got anything to do with the origination of bounty?

I don't speak more than about 10 words of dutch, but on first reading the phrase, I guessed at "I've got a bounty/reward for you". Simply a coincidence?