Beef Gravy

Ingredients Beef bouillon 86.0% , onion 7.4% , corn starch 3.3% , wheat flour 1.6% , yeast extract 0.8% , carrot 0.4% , butter 0.2% , sherry vinegar 0.1% , caramelised sugar 0.1% , salt 0.0% , mushroom 0.0% , tomato concentrate 0.0% , red wine 0.0% , black pepper 0.0% , sunflower oil 0.0% , bay leaf 0.0% , thyme 0.0%