Prepare the Marinade: In a large mixing bowl, blend together sugar, fish sauce, finely chopped garlic, roasted rice powder, baking powder, corn starch, and nem nuong curing powder until thoroughly incorporated.
Marinate the Pork: Add the fatty ground pork to the marinade and mix until the pork is fully coated. Cover the bowl with plastic wrap and refrigerate for 2 hours. Chilling the mixture helps in shaping the sausages around the skewers later.
Skewer the Sausages: Using your hands, take a handful of the marinated pork mixture and evenly wrap it around a skewer. Place the prepared skewers on a plate. To prevent sticking, use plastic wrap in between the skewers as you make them. Freeze the skewers as you complete each batch.
Prepare Sausage Balls: Roll some of the pork mixture into balls of your preferred size. Freeze these balls once you've shaped them all.
Pre-freeze for Better Shape: For at least 2 hours, freeze the skewers and balls to help them maintain their shape during cooking.
Preheat the Oven: Preheat your oven to 350 degrees Fahrenheit.
Bake the Sausages: Place the nem nuong skewers in the oven and bake for 20 minutes. Remember to flip them halfway through the cooking time to ensure even cooking.
Prepare the Sweet Glaze: While the sausages are baking, prepare the sweet glaze by mixing the ingredients until well combined.
Glaze and Broil: At the 20-minute mark, take out the nem nuong from the oven. Spread the sweet glaze over the sausages. Switch the oven to broil mode and let the glaze bubble up for a bit. Flip the nem nuong, apply more glaze, and broil until caramelized.
Rest and Serve: Once out of the oven, let the nem nuong rest for 2 minutes before serving. Enjoy your delicious Vietnamese pork sausage skewers!