Rinse and drain the whole grain sorghum. Pour the liquid and sorghum into a pressure cooker. Set the pressure cooker to high pressure for 20 minutes. Once the pressure cooker has completed, quick release all of the pressure, drain the sorghum into a small sieve colander, rinse the sorghum, and fluff with a fork.
While sorghum is cooking, Make dressing in a large bowl. Add edamame, corn, onion, and parsley to the bowl
Once cooked, add sorghum to bowl with other ingredients and mix.