Sentence:  You could just use ordinary shop-bought kecap manis to marinade the meat, but making your own is easy, has a far more elegant fragrance and is, above all, such a great brag! Flavouring kecap manis is an intensely personal thing, so try this version now and next time <WSD>cook</WSD> the sauce down with crushed, split lemongrass and a shredded lime leaf. 
Meaning of the word marked with <WSD> tags:  To prepare (food) for eating by heating it, often by combining it with other ingredients.