[header] How to make gluten free shortbread chocolate bars [title] Preheat the oven to 350 degrees fahrenheit (180 degrees celsius). [title] For the shortbread, measure the flour and baking powder into the bowl. [title] Add the butter and blend the butter into the flour mixture until it has the consistency of cornmeal. 
[step] Do this with either a pastry blender or your hands. [title] Add the powdered sugar and the orange or lemon peel.