Peppercorn Studded Burger, Tricolour Slaw & Sweet Potato Wedges

Ingredients

• 500g Irish minced beef – rump, blade or chuck steak (with at least 20% fat content)
• 1 garlic clove, crushed
• 1 tbsp tomato puree
• 2 tsp Worcestershire sauce
• 1 tbsp chopped fresh coriander
• 1 tbsp black peppercorns, cracked
• 4 burger buns, halved
• 225g white cabbage, thinly sliced
• 100g carrots, grated
• Finely grated rind of 1 lime
• Juice of 3 limes
• 2 tbsp white wine vinegar
• 1 tbsp caster sugar
• 1 tsp salt
• Handful fresh coriander leaves
• 500g orange fleshed sweet potatoes
• 1 tbsp olive oil
• Sea salt and freshly-ground black pepper
• Salad leaves
• Caramelised onion relish or tomato chutney