Kelp a,
Soybean half a bowl, beforehand with cold water soaked 3-4 hours.
Wash the pig's trotters, cook them in boiling water with a little salt for 3-4 minutes, and take them out; pour off the water, put the water to boil again, pour in the cooking wine.
Then in the pressure cooker into the ginger, a little sugar, a little onion, and white pepper, pepper, chili pepper a small amount
(these three to be installed in the spice box, if directly into the pot, drink soup when drinking pepper will be very defeated taste; secondly, the amount of words, it is pressed the flavor of the seaweed, but also and the kelp to produce a strange taste),
add cold water until it does not pass through the all the ingredients, put the right amount of salt, drop 5 drops of vinegar, add the lid to the pressure cooker on the gas, after 20 minutes, when the pressure valve automatically down, can be served.
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