Mix the flour, baking powder, margarine and sugar together until the mixture resembles crumbs. Add the chocolate chips, vanilla and syrup and continue mixing until the ingredients come together as a stiff dough.
Turn the mixture out onto a floured surface. Form into a roll approximately 9cm (3.5in) in diameter and slice into eight. (For large quantities divide the mixture into manageable portions first).
Place the cookies onto a greased tray and bake in the preheated oven for 20-30 minutes until pale brown. Do not overcook.