To make and measure the squeezed kimchi, first firmly squeeze the liquid from the kimchi, then measure the kimchi and finely chop. Use fermented or ripe kimchi if possible. If your kimchi is dry and does not have enough brine, add more water until you have 5 tablespoons. There are two kinds of gochugaru in Korean grocery stores. Make sure to buy a coarser version of gochugaru, as it is mainly used for kimchi making. Finer gochugaru is more widely used for soups, gochujang (Korean red chile paste) and side dishes. Add more gochugaru if you want more spice. Do not skimp on oil, as this will help crisp up the edges of the pancake while keeping it moist.