Mix flour, salt, orange zest, sugar & butter using the paddle until you get a “sandy” texture then add eggs to it and mix on second speed for a couple of minutes (do not over mix)
Roll up or flatten the dough on a floured surface to 1cm thick or half size of your desired tartlet / tart rings, cut with the tart ring itself and place on baking tray with the ring
Bake at 165 degrees until you get to a lovely golden brown colour
Remove the ring when you can before they cool down