Ingredients

• 750g potatoes cut in half or quarters, depending on the size
• 1 litre/ 1_ pints hot vegetable stock
• 1 tbsp olive oil
• 1 red onion, halved and thinly sliced
• 2 garlic cloves, peeled and finely sliced
• 1 preserved lemon, finely chopped
• 250g drained roasted peppers, sliced
• 1 tsp hot smoked paprika
• 1 tsp ground cumin
• 1 tsp ground ginger
• 2 tbsp tomato puree
• 1 tbsp white wine vinegar