Soak the skewers in a bowl of water for 10 mins. Meanwhile, peel the prawns, leaving the tails intact, and devein. To do this, run a sharp knife down the back, making a tiny incision just enough to remove the visible black vein. Wash the prawns and pat dry with kitchen paper.
In a medium-sized bowl, mix together the paprika, garlic, cumin, oregano, lemon zest and 1 tbsp olive oil. Add
the prawns and leave to marinate for 15 mins at room temperature. Then skewer a prawn onto each stick.
Heat the remaining oil in a roomy frying pan and fry the prawns for 3-4 mins, turning halfway through until just cooked. You may need to do this in batches. Season, squeeze over some lemon juice and serve.