Cheese and Onion Quiche

Ingredients Wheat Flour 53.4% , skimmed milk 16.4% , egg 8.5% , onion 9.0% , water 3.4% , vegetable oil 2.5% , extra mature cheddar 1.9% , mature cheddar 1.5% , single cream 1.3% , Fromage Frais 1.0% , corn flour 0.9% , red leicester 0.8% , modified corn starch 0.7% , chives 0.6% , dextrose 0.5% , salt 0.5% , white pepper 0.4% , nutmeg 0.4%