Here on the lush, banana, bamboo and barge filled banks of the Red River in Hanoi organic and alternative health food is rare. Our friend and local grocer orders bulk, gardens organically, prepares it all in her kitchen and living room and sends out boxes to us. She makes everything there in the house and is always trying to diversify. She acts as our health expert and nutritionist and says that seitan and tofu is not enough for us anymore, we need to go a step further into kǎo fū (烤麩). The best I could do for her was a google search which yielded nothing. The alternative macrobiotic health food movement of Hanoi needed a recipe for Kao Fu and it took many days to get it.
So here is the result of the search. A good simple recipe for Kao Fu. (Translation from this video http://www.youtube.com/watch?v=UZfgXOcBdLM&feature=related)
Melt dry yeast in water at 37°C for 10 minutes.
Mix flour and yeast solution together with a small spoon of salt...
No unit is given for the flour, just make a big dough (best to use high protein content wheat flour, so that you can get more gluten)
Allow dough to grow 1.5 times into a large net-kind structure.
Wash the dough until it looks like long-chewed gum - at a certain point volume will not be lost through washing, at this point you've got wheat gluten.
cut into cubes