French onion soup & parmesan croutons recipe | WW TASTE

Ingredients

• 4 large onions, thinly sliced
• 2 large red onions, thinly sliced
• 6 shallots, cut into petals
• 4 leeks, chopped
• 3 cloves garlic, crushed
• 50 g buuter
• 2-3 T olive oil
• 2 T balsamic vinegar
• 4 cups beef stock
• 1 T sherry vinegar
• Sea salt and freshly ground black pepper
• 1 French loaf, thinly sliced and toasted
• 150 g Parmesan, grated
• 2 bay leaves