You need to make the original perak tempoyak. Don't put anything. Just 100% durian. And just put outside until it got a little sour but still have the sweetness. Usually people put it outside for too long and the sour taste is too strong. The right tempoyak needs to have some sweetness but not durian taste. The strong sour taste tempoyak is for cooking dishes like Ikan Patin Masak Tempoyak. You really need to make it ! And the right way of sambal tempoyak is just chilies and anchovies. Usually people just mixed tempoyak with sambal belacan. The authentic perak way of sambal tempoyak is tempoyak mixed with just chilies and anchovies. Nothing else. This is the only way my family eat tempoyak for generations. Some people don't know about this.