My EE will use Philips blender to blend the pork. While blending, she will add cold water. The pork becomes very creamy, just like milk shake. Then cook it for 10-15 mins, not 鞋.
My EE will add a small portion of pork (around 1/3 bowl) and fish to congee together with different kinds vegetable (e.g. carrot, chestnut, pumkin, sweet potato etc).