how do i thicken a pasta sauce?

[chinachef]

when i make pasta sauce(kungpao sauce),i need the sauce thick,how can i keep the sauce thick long time?

[lindatooo]

I've let it cook down - simmer - until it is very thick and it helps to add some sun-dried tomatoes to it cut up into slivers. They richen the sauce as well. If you want to cool it for freezing or keep in the fridge for some time it helps to let it cool without a tight cover on it.

[chinachef]

i need all about califonia food

[ironchef]

use tomato PASTE to thicken it.

regarding california cuisine, just search the internet already, and look at my reply to your other post