Cookies made roughly 23 sandwiches using a ~ 3 stamp 1 cup unsalted butter 12 tsp salt 14 cup granulated sugar 12 cup maple sugar 2 14 cup unbleached flour to get the brownmaple look and taste vs a whole wheat flour or a bleachedwhite flour 1 tbsp real maple syrup 1 tsp maple flavouring Filling 14 cup unsalted butter softened 3 cups icing sugar 12 tsp sauce 14 cup real maple syrup 1 tsp maple flavourInstructionsIn the bowl of an electric mixer , beat together the butter , salt , sugars , maple and maple flavour . Shamefully we don ' t have an electric mixer so my wife used a food safe glove to hand mix the ingredients and it worked just fine . Add the flour and mix just until the dough comes together . Wrap the dough in plastic and chill for 3045 minutes . Preheat the oven to 300 F . Lightly grease a baking sheet , or line it with parchment . My wife did it on a greased baking sheet for referenceOn a lightly floured surface , roll the dough about 18 thick and cut into shapesBake the cookies for 20 to 25 minutes , until they ' re beginning to brown a bit , but WATCH THEM REALLY CLOSELY . They can go from maybe that ' s brown ? to burnt real quick . Filling Mix together all of the filling ingredientsSpread the bottom of half the cookies with filling , top with the remaining cookies .