Chicken-Stuffed Matzo Balls Recipe

Ingredients (10)

• 2 tablespoons (30ml) chicken fat, unsalted butter, or vegetable oil (see note)
• 1 medium onion, finely chopped (about 1 cup)
• 1 3/4 teaspoons (7g) kosher salt, plus more to taste, divided
• 1 pound (450g) ground chicken (preferably dark meat; see note)
• 1/2 cup fresh dill (1/2 ounce; 14g), finely chopped
• 3 eggs
• 1/2 teaspoon freshly ground black pepper
• 1/4 to 1/2 cup (29 to 58g) matzo meal, as needed
• 7 cups matzo meal batter (see note)
• 3 quarts (2.8L) chicken soup, for serving