Meatballs made of entirely pork seem to be surprisingly uncommon. Rather, ground pork is frequently used across the globe as an additive to increase the deliciousness of other meats. Pork fat is especially sought after for it's excellent ability to add moisture to leaner meats. (The sensation of "moist" or "succulent" food usually comes from fat, not water). Anyway, the Chinese don't shy away from pork. A popular meatball in eastern China (particularly Shanghai) is known as the Lion's Head (the meatball is the head, and the bed of cabbage it's served on is the mane). According to Wikipedia, Lion's Head meatballs can be up to 10cm in diameter!
Lion's Head Meatballs
1# Ground Pork
~1 tsp Fresh Ginger, minced
1 1/2 Tbsp Cornstarch
1 Tbsp Water
2 tsp Soy Sauce
pinch salt
(add 2-3 eggs to make these fluffier)
(chopped mushrooms are also a common addition)
....
oil for frying
...
1 head Bok Choi or Napa Cabbage
Mirin
Stock
More Soy Sauce
(optional garlic)
...
Green Onion for garnish
Put pork, minced ginger, and salt into a large bowl. In a second bowl, stir together the cornstarch, water, and soy sauce until it's a smooth slurry - add this to the bowl with the pork in it. Thoroughly mix together and use your hands to form whatever size meatballs you want - I made roughly walnut-sized balls. To avoid an impossibly sticky mess on your hands - wet your hands with water before diving in to form meatballs.
I think it's easiest to form all the balls, then wash your hands and start frying. Otherwise you could risk getting pork everywhere or burning your balls while you're trying to wash the pork off your hands. Alternatively, if you don't like cooking with your hands - you can use an ice cream scoop or spoons to make each ball.
Heat up some peanut oil (or sesame, or grapeseed, or canola) in a wok or heavy-bottomed pan on medium to low heat. Meanwhile, get some rice cooking!
When the oil is hot - add your balls! You should have enough oil to come at least half-way up each ball.
Don't touch the meatballs immediately after you put them in the frying oil! They will likely be stuck to the bottom, but if you give them a minute, they will unstick themselves. Whereas in my experience, if you try to unstick them right away, they will inevitably turn into a sticky mess. Let the meatballs fry for a few minutes until browned on the bottom and then turn them over and fry until they are nicely browned all over.
Move browned meatballs from the frying oil onto a paper towel to let the excess oil drain off.
Prepare the mane of the lion: Chop up some bok choi or cabbage and use it to line a large pan.
Drizzle maybe a 1/2 cup of mirin, 1/2 cup of stock, and a few Tbsp of soy sauce over to the bok choi. I also added some sliced garlic (fresh ginger also would have been good!). Place the fried meatballs on top and let simmer for about 20 minutes until the bok choi is wilted and tender. Season with salt.
Serve with rice and fresh green onions.
References:
Two Red Bowls
The Thousand Recipe Chinese Cookbook