French onion soup burgers

minced beef 52.3% , beef broth 23.9% , beef broth 11.9% , sea salt 0.2% , honey 0.2% , vegetable 0.2% , sugar syrup 0.2% , natural flavouring 0.2% , beef extract 0.2% , mushroom 0.2% , tomato 0.2% , spice 0.2% , herb 0.2% , yellow onion 0.2% , English muffins 0.2% , fortified wheat flour 0.2% , water 0.2% , yeast 0.2% , contains 2% and less of 0.2% , wheat gluten 0.2% , YEAST NUTRIENTS 0.2% , lemon 0.2% , baby arugula 0.2% , gruyère 0.2% , unsalted butter 0.2% , flour 0.2% , wheat flour 0.2% , barley malt flour 0.2% , dijon mustard 0.2% , thyme 6.1%