Step 1: 1. Mix the nutella, butter, orange rind (if using), sugars and butter together until the mixture is light and fluffy.
Step 2: 2. Add the beaten egg and flour to make a fairly firm mixture.
Step 3: 3, Using your hands roll the mixture into balls and then place them on an UNGREASED baking sheet (if you grease it oddly enough the cookies will stick)
Step 4: 4. Flatten out the cookies with your hands
Step 5: 5. Bake at 180c (350 F) gas mark 4 for about 25 minutes until cooked