Prep the dough for the BBQ Pork Buns. The recipe is on my website. Search for HOMEMADE BREAD. In a bowl, combine boneless pork ribs, soy sauce, Chinese Shaoxing wine, garlic, salt, and chili flakes. Toss to coat. Marinate the meat for at least an hour or overnight in the fridge.
Make the sauce. Dissolve the cornstarch in 1/4 cup water or chicken broth. In a saucepan, add soy sauce, apple cider vinegar, Worcestershire sauce, tomato paste, honey, brown sugar, garlic powder, onion powder, and red chili pepper flakes, stir to combine. Add the cornstarch mixture, simmer, keep stirring until reduced and thickened. Set aside.
Heat the oil in a skillet. Add the marinated pork, cook until browned. Remove from the pan, place them on a platter to cool.
Cut the cooled pork into small chunks and place them in a bowl. Add the sauce, stir to mix.
Preheat the oven to 375ºF. Line a baking sheet pan with parchment paper (you might need 2 baking sheet pans).
Cut the bread dough in half first, then cut them into 18 pieces. Eyeball or weigh each dough to get the even-sized buns.
Roll each dough into 4-5" (10-13 cm) in diameter. Fill them with about a tablespoon of the bbq pork filling. Pinch the edges to seal. Brush with egg wash, sprinkle with sesame seed, bake for 30-35 minutes or until golden brown.