Preparation
Step 1
                         
Preheat the oven to 180°C, gas mark 4.
 
                    
Step 2
                        Shake the chick peas to remove any excess liquid, then dry well with a tea towel.
 
                    
Step 3
                        Tip onto a baking tray and drizzle with the olive oil and sumac, tossing well to coat.
 
                    
Step 4
                        Cook for 20-25 minutes or until crisp.
 
                    
Step 5
                        Slice the grape leaves into 2cm rounds and put in a bowl with the cucumber, rocket and chick peas. Mix well.
 
                    
Step 6
                         
Divide among serving plates and scatter with the mint leaves.