Tangcu Muli Rouwan (Sweet and Sour Pork and Oyster Meatballs)

Ingredients

• 3 cups canola oil
• 10 oz. ground pork
• 4 oz. oysters, finely chopped (about 10 shucked oysters)
• 6 cloves garlic, minced
• 2 suan miao (Chinese chives, blossoms discarded) or scallions, minced
• 1 (1 1/2") piece ginger, peeled and minced
• 1 egg white, beaten
• ¹⁄₄ cup cornstarch
• ¹⁄₄ cup douban jiang (Chinese red chile bean paste)
• 2 tbsp. dark soy sauce
• 2 tbsp. dry sherry
• 2 tbsp. sugar
• 1 tbsp. Chinkiang black vinegar
• Steamed rice, for serving