Dark non stick tins

From Forum:
http://jodeli.proboards.com/index.cgi?board=cakerecipes&action=display&thread=912

- The middle part of the cake is not cook! Can someone pls tell me why ? 

from your picture i guess you took it out when the top looked cooked. you did not test with a skewer. Poke into the thickest part of the cake . if it comes out clean, its cooked.

you are also using dark non stick baking tins. they absorb and give off heat easily compared to normal aluminium/tin baking tins. the cake browns/cooks faster on the outside compared to the inside. So it looks cooked but the inside isn't. try reducing the temperature by 10 to 15 C and bake for the same time or longer. Check using the skewer.