Chana chaat (mixed bean salad)

Ingredients

• For the mint chutney:
• 1 large handful fresh mint
• ½ green chilli, deseeded
• ½ onion, chopped
• 250g low-fat natural yogurt
• pinch chilli powder
• freshly ground black pepper
• For the chana chaat:
• 2 x 400g tins chickpeas, drained and rinsed
• 560g tin new potatoes, drained and quartered
• 220g tin red kidney beans, drained and rinsed
• 220g tin black-eyed beans, drained and rinsed
• 198g can of sweetcorn, drained
• ½ tsp chilli powder or to taste
• 1 green chilli, finely chopped
• ½ tsp chaat masala
• 1 tsp lemon juice
• 1 small onion, finely chopped
• 1 tomato, finely chopped
• 1 tsp garam masala powder