Sentence:  First, marinate the <WSD>tofu</WSD>. In a bowl, whisk the kecap manis, chilli sauce, and sesame oil together. Cut the <WSD>tofu</WSD> into strips about 1cm thick, mix gently (so it doesn't break) with the marinade and leave in the fridge for half an hour. 
Meaning of the word marked with <WSD> tags:  A protein-rich food made from curdled soy milk.