01 -
Soak wooden skewers in water for 1 hour before grilling to prevent burning.
02 -
Toast white sesame seeds on medium-high heat for 2 to 3 minutes until golden. Grind seeds with a pestle or use a sealed bag and rolling pin. Set aside to cool.
03 -
Trim and slice the boneless beef sirloin roast against the grain into even 2 x 3-inch slices with 1 cm thickness. Place sliced beef in a large mixing bowl.
04 -
In a medium bowl, whisk together brown sugar, soy sauce, garlic, sesame oil, mirin, hoisin sauce, toasted sesame seeds, and pineapple juice if tenderizing tougher cuts. Combine marinade with the sliced beef, mix thoroughly, cover, and refrigerate for 1 hour.
05 -
Thread approximately 6 beef slices onto each skewer, leaving a 2-inch gap at one end for easy handling. Arrange skewers on a foil-lined tray.
06 -
Boil the remaining marinade in a saucepan until thickened for use as additional sauce while grilling.
07 -
Grill skewers over medium-high heat (approximately 400°F) for 3 to 4 minutes on each side until cooked, with a sticky or slightly charred surface. Serve immediately as appetizers or a main dish.