Mighty Yeast Extract & Roasted Onion Beef Burger

british beef 80.0% , onion 10.6% , water 4.7% , yeast extract 2.4% , rice flour 1.2% , chickpea flour 0.6% , potato 0.3% , salt 0.1% , sea salt 0.1% , black pepper 0.0% , Preservative 0.0% , corn starch 0.0% , dextrose 0.0% , E375 0.0% , vitamins 0.0% , vitamin B12 0.0% , thiamin 0.0% , folic acid 0.0% , E101 0.0%