Heat the oil and add the onion and cook until browned. Add 125ml water, tomatoes, garlic, ginger, chilli, turmeric, cumin seeds and black onion seeds and stir in. Cook for 3-5 minutes.

In the summer, many of us stick to salads and convert to soups in the winter, but that doesn't have to be the case - as Dr Amir ... broccoli, garlic, and hummus toast and crispy potato salad ...