Ham & cheese sandwich on a pretzel bun

pretzel 51.1% , barley malt flour 24.5% , E375 12.2% , reduced iron 6.1% , thiamin mononitrate 3.1% , E101 1.5% , folic acid 0.8% , water 0.4% , canola oil 0.2% , sugar 0.1% , CONTAINS LESS THAN 2 % OF EACH OF THE FOLLOWING 0.0% , malted barley 0.0% , salt 0.0% , wheat flour 0.0% , dextrose 0.0% , E524 0.0% , maltodextrin 0.0% , CULTURED DEXTROSE 0.0% , wheat starch 0.0% , barley malt flour 0.0% , ASCORBIC ACID ADDED AS A DOUGH CONDITIONER 0.0% , soya oil 0.0% , enzyme 0.0% , E516 0.0% , E460i 0.0% , ham 0.0% , salt 0.0% , sugar 0.0% , E339 0.0% , E316 0.0% , sodium nitrite] pasteurized process american cheese 0.0% , milk 0.0% , water 0.0% , dairy 0.0% , sodium citrate 0.0% , Modified starch 0.0% , CONTAINS 2% and LESS OF CHEESE CULTURE 0.0% , E330 0.0% , apo-carotenal 0.0% , E160ai 0.0% , cream 0.0% , enzyme 0.0% , milkfat 0.0% , salt 0.0% , E200 0.0% , soya lecithin 0.0%