In a large bowl, combine ground pork, ground beef, panko breadcrumbs, beaten egg, soy sauce, sesame oil, minced garlic, grated ginger, and black pepper. Mix gently until just combined. Do not overmix.
Roll the mixture into small meatballs, about 1-inch in diameter. You should get around 24 meatballs.
Preheat your oven to 400°F (200°C) or heat a skillet over medium-high heat with a little oil.
If baking: Place meatballs on a baking sheet lined with parchment paper and bake for 15-20 minutes, or until browned and cooked through.
If pan-frying: Add meatballs to the hot skillet and cook, turning occasionally, until browned on all sides and cooked through. This will take about 10-15 minutes.
While the meatballs are cooking, prepare the sauce. In a small saucepan, whisk together gochujang, brown sugar, soy sauce, rice vinegar, sesame oil, minced garlic, and grated ginger.
Cook the sauce over medium heat, stirring constantly, until it thickens slightly, about 5-7 minutes. Be careful not to burn the garlic.
Once the meatballs are cooked, add them to the saucepan with the Korean BBQ sauce. Toss gently to coat all the meatballs evenly.
Simmer for another 2-3 minutes to allow the flavors to meld and the sauce to coat the meatballs beautifully.
Serve the Korean BBQ meatballs hot, garnished with toasted sesame seeds and sliced scallions.
Notes
These meatballs are delicious served as an appetizer with toothpicks, or as a main dish over rice with a side of steamed vegetables.