Combine char siu, onions, oil, sugar and five spice. Set aside. Prepare hot roll mix according to package directions; let rise until doubled. When doubled turn dough out onto a lightly floured board and knead dough until smooth and elastic. Divide dough into 12 pieces. Divide meat mixture into 12 parts. Grease hands and board. Flatten pieces of dough. Put about 1 portion of meat mixture in center of each piece of dough. Form into buns by pulling dough up around the filling; pinch to seal seams. Place on squares of waxed paper, smooth side up. Arrange on a steaming rack. Cover and let rise until doubled. Steam for 15 minutes. Serve warm. Yummy!!! Me ke aloha, Mary