Slow Cooker French Onion Soup - Feed Your Family for £20 a week

Ingredients

• 1 kg Onions
• 50 g Butter
• 1 tsp Oil
• 1 tbsp Brown sugar
• 2 tbsp Flour
• 2 tsp Black Pepper
• 2 tbsp Worcestershire sauce
• 1 tbsp Soy sauce
• 1 Bay leaf
• 4 Garlic cloves
• 1 tsp Mixed herbs
• 2 Bovril stock cubes
• 1 L Water
• 4 Slices of crusty bread
• 100 g Mature Cheddar cheese grated