4 punnets cherry tomatoes, cut in half
1 tsp fenugreek seeds
1 tsp onion powder
Β½ tsp dried chilli flakes
4 tbsp caster sugar
ΒΌ tsp chilli powder
Β½ tsp ground cloves
1 tsp ground coriander
1 tsp ground cumin
1 tsp ground ginger
Β½ tsp salt
Β½ tsp turmeric
220ml/8fl oz white wine vinegar
280ml/10fl oz natural yoghurt
2 chicken breasts