Moderate
Cut the pork into bite-sized pieces.
Slice the onion and green onion thinly.
In a bowl, mix gochujang, soy sauce, minced garlic, red pepper powder, erythritol, and pepper to make the marinade.
Add the marinade to the pork and marinate.
Heat oil in a pan and stir-fry the green onion for aroma.
Add the pork and onion, then stir-fry over high heat.
Once the pork is cooked, turn off the heat and transfer to a plate.