Preheat and prep: Set your oven to 425°F (220°C).
Line a baking sheet with parchment or lightly oil it so the meatballs don’t stick.
Mix the meatball base: In a large bowl, combine the ground pork and chicken. Add scallions, garlic, ginger, soy sauce, fish sauce, sesame oil, egg, panko, chili flakes, black pepper, and a small pinch of salt. Mix gently with your hands or a spatula until just combined.
Form the meatballs: Scoop the mixture into balls about 1 to 1.5 inches wide.
You should get around 20–24 meatballs. Lightly wet your hands to make rolling easier.
Bake until juicy: Arrange the meatballs on the prepared sheet. Bake for 12–15 minutes, until the centers reach 165°F (74°C) and the edges are lightly browned.
Don’t overbake or they’ll dry out.
Make the sauce: While the meatballs bake, add soy sauce, honey, rice vinegar, sriracha (or gochujang), ginger, garlic, and water to a small saucepan. Bring to a gentle simmer over medium heat, stirring occasionally.
Thicken to a glaze: Stir the cornstarch slurry to recombine. Whisk it into the simmering sauce and cook for 1–2 minutes until glossy and thick enough to coat a spoon.
If it gets too thick, add a splash of water. Taste and adjust sweetness or heat.
Coat the meatballs: Transfer the baked meatballs to a skillet or the saucepan if large enough. Pour in the sauce and toss over low heat for 1–2 minutes until every meatball is coated and glistening.
Garnish and serve: Sprinkle with sesame seeds and extra scallions.
Serve over rice or noodles, or nestle in lettuce cups with a squeeze of lime.