sentence: add sorted red onion sorted celery some fresh herbs and pepper powder little salt to pre ground sirloin sentence: put a pair of gloves mix all the ingredients well sentence: place ring on plastic wrap and fill in mixture inside ring to brim press it and remove filling sentence: repeat the steps for all burgers sentence: to make small burgers take small quantity of the mixture roll it and press so as to get small burger sentence: season the patties by sprinkling little salt and pepper on top of the burgers