Marinate the Beef & Mix the Sauce
In a medium bowl, combine the ground beef, soy sauce, brown sugar, sesame oil, minced garlic, and grated ginger. Mix well and set aside at room temperature. In a small bowl, whisk together all the sauce ingredients until smooth.
Marinating infuses the meat with sweet-savory Bulgogi flavors. Mixing the sauce ahead allows the sugar to dissolve completely into the dense gochujang paste.
A glossy, well-incorporated sauce paste; meat that has completely absorbed the marinade liquids.