Ingredients
1/4 pound stemmed fresh shiitake mushrooms, medium dice
2 teaspoons Diamond Crystal kosher salt, plus more as needed
2 tablespoons oyster sauce
2 tablespoons sugar
7 cloves garlic, very finely minced
1 pound ground turkey
1/2 pound ground pork
4 teaspoons peeled, finely minced ginger (1 1/2-inch piece ginger)
1 (28-ounce) can diced tomatoes
3 tablespoons extra-virgin olive oil
Instructions
  1. Sear mushrooms: Heat the vegetable oil over high heat in a large saute pan. When the oil is shimmering-hot, carefully add the mushrooms and spread them out into one layer as best you can. Let sear, undisturbed, until richly browned, about 1 minute. Toss, spread out again, and let sear for another minute. Remove mushrooms from heat, season with salt to taste, and transfer to a medium bowl to cool.
  2. Mix marinade: In a small bowl, combine the oyster sauce, sesame oil, 4 teaspoons sugar, 2 teaspoons Diamond Crystal kosher salt, and the chicken stock.
  3. Mix aromatics: Add ½ cup of the chopped scallion and 3 cloves of finely minced garlic to the bowl with the mushrooms and stir to combine.
  4. Make meatball mixture: Place the turkey and pork in a large mixing bowl and gently fold them together with your hands to start to combine. Pour in the marinade. Hold the fingers of one hand apart, as if holding a softball. Using that hand, stir the meat in one direction to mix in the marinade, being sure to agitate all the meat. When the meat has absorbed all the liquid and the mixture has gotten a bit sticky or tacky, stop. Add the mushroom mixture and gently fold to combine. Cover and let marinate for up to 4 hours.
  5. Make sauce: Set aside 2 tablespoons of scallions for garnish. In a Dutch oven or other large, lidded braising pan, heat the olive oil over high heat until you see the first wisps of smoke. Add 4 cloves of minced garlic and stir until very aromatic, about 15 seconds. Add the ginger and stir until very aromatic, about 15 seconds. Add the remaining scallions and stir for 15 seconds. Add the can of tomatoes, bring it to a boil, and reduce heat to a simmer. Season with 2 teaspoons sugar and salt to taste. Cover and simmer for 15 minutes.
  6. Form and cook meatballs: Meanwhile, use a large soup spoon to scoop up the meat mixture and using your hands, very lightly pat out 1½”-diameter meatballs. Set them on a plate. (You should have about 24 meatballs). After the sauce has simmered for 15 minutes, remove the lid and gently add the meatballs in one layer. Adjust heat to a bare simmer and cover the pot. Let poach / steam until the meatballs are just cooked through, 10-12 minutes.
  7. Serve: Garnish with the reserved scallions and serve.