Warm Hummus With Toasted Bread And Pine Nuts

3 pitas

90 ml olive oil

1.5 tsp ground cumin

10 g parsley leaves, finely chopped

2 lemons

250g dried chickpeas

1/4 tsp bicarbonate of soda

5 garlic cloves

200 g Greek-style yoghurt

150g tahini

60g pine nuts

1/2 tsp sumac

1/4 tsp paprika