Instructions: Blitz all the spices together until finely ground in a coffee grinder. Stir in 3 tablespoons of yoghurt.

Cut the tofu into squares 2"x2", coat with lemon juice and sprinkle with salt. Marinate in the spice mix for at least one hour. Skewer them on to bamboo skewers and set aside.

Finely slice the red onion and cucumber and mix together with the coriander. Season with salt and pepper. Heat a grill pan and grill the pittas on both sides. Keep warm.

Fry the tofu skewers in a little groundnut oil until brown on all sides.

To serve, slice open the pittas, fill with some of the red onion mix, top with a tofu skewer and serve with natural yoghurt.

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