Slow Cooker French Onion Soup

{ "@type": "ItemList", "itemListElement": [ "Over medium heat sauté the onion in butter until soft and translucent and caramel colour. Make this in 3 batches.", "Place onions in slow cooker.", "Deglaze cooking skillet with some of the beef stock;this is the secret to that taste.", "Add to slow cooker along with the remaining beef broth (your own homemade or powdered mixed with boiling water).", "Add Worcestershire sauce, thyme and bay leaf.", "Cover; cook on High for 4 hours or on low for 6-8 hours.", "Add salt and pepper to taste. Remove bay leaf.", "Divide soup into appropriate containers.", "Seal and freeze.", "When ready to enjoy your French Onion Soup.", "Remove from freezer and place in a microwave dish with 2 tbsp sherry; heat for 5 minutes.", "Add Parmesan cheese to your onion soup bowl. Place one slice of toasted bread over the cheese. Fill bowl with soup.", "Top with shredded Gruyère cheese.", "Place under broiler to melt your cheese.", "Tip: When adding your ingredients to the slow cooker make sure they are all hot.", "Use the processor to slice your onions. I once read 'If I use my food processor just to make onion soup it will be worth the cost".", "Bon Appettit!" ] }