French Onion soup with Cheese Crouton

Beef Bones (Previously Frozen) UK Red Tractor, Onions : Large (Whole Onion), Carrots (Carrot), Leeks (Leek), Hobbs St Martin Sourdough : Sliced (white **Wheat** flour (with added calcium carbonate , iron,niacin , thiamin ) water salt malted **Barley** organic **Rye** flour), Swiss Gruyere (Swiss Gruyere), Parsley : Flat Leaf (Parsley : Flat Leaf), White Wine : Chardonnay (De-Alcoholised Wine from Concentrate, Chardonnay (40%), Salt, Preservative (Potassium Metabisulphite)), Butter : Unsalted (Butter (**Milk**) (**Milk**)(Minimum Fat Content 82%)), Thyme (Thyme), Rosemary (Rosemary), Vegetable Oil : Extended Life (Refined Rapeseed Oil, Anti-Foaming Agent Dimethylpolysiloxane.), Soft Sugar : Dark Brown (Cane Sugar), Brakes Rapeseed Oil : Extend Life (Rapeseed Oil, Anti-foaming Agent(Dimethylpolysiloxane).), Brakes Table Salt (Salt, Anti-caking Agent E535.), Garlic : Peeled (Garlic : Peeled), Whole : Black Peppercorns (Whole Black Pepper.), Bay Leaves (Dried Bay Leaves.), Maldon Sea Salt (SEA SALT), Ground : White Pepper (Ground White Pepper.), Bay Leaf : . (Bay Leaves)