I want to make a recurring payment that is enforced by the blockchain and the scripting engine.

If I have the following fixed source address, funded with 100 BTC

 16UwLL9Risc3QfPqBUvKofHmBQ7wMtjvM

I want to pay the following address 10 BTC ten times, approximately once every N blocks or once a month.

 1BTCorgHwCg6u2YSAWKgS17qUad6kHmtQW   (The Bitcoin foundation)

What are some approaches I should take to accomplish a recurring payment like this?