Firstly, combine the ground pork or ground beef, onion, tofu and noodles in a large mixing bowl.
Secondly, combine the soy sauce, garlic, sesame oil, pepper and salt in a separate small bowl.
Thirdly, mix the seasoning combination into the meat and veggies with your hands.
Next, fill each dumpling wrapper with roughly 1 spoonful of filling.
Then, wet the perimeter of half of the wrapper with your finger.
Next, fold the wrapper in half and press to seal before crimping the edges. Repeat until the filler has been removed.
You can boil, steam, sauté or fry the dumplings as desired.
Boil a large pot half full of water and slide the mandu into the water. When it returns to a boil, reduce to low heat and let it cook for 6-8 minutes.
Place the dumplings in a steamer basket to steam (Jjin Mandu). Steam for 15-20 minutes.
Heat a few inches of canola oil in a fryer to 350°F to deep fry. Fry the dumplings in batches for 2-3 minutes or until golden brown.
Finally, serve with either a simple dipping sauce or a spicy sauce.