Preheat oven to 375 degrees.
Line a cookie sheet with parchment paper
Sift flour. Set aside.
Lightly flour a flat surface. (Cutting board)
Add the butter, powdered sugar, and apple cider in a mixing bowl. Using an electric mixer combine the ingredients.
Continue mixing while adding in the salt.
Slowly add the sifted flour, a cup at a time, continuing to mix for a few minutes. At first the mixture will resemble sand. Continue to mix until it begins to look like dough.
Slightly four your hands work with the dough and form a ball. Move the cookie dough on the floured cutting board.
Reflour your hands and coat the rolling pin with that flour.
Using the flour coated rolling pin roll the cookie dough out until it is about 3/4 inches thick.
With the round cookie cutter, cut out the dough to form the cookies.
Use a spatula to move the raw cookies to the prepped cookie sheet.
Bake at 375 degrees for 6 minuted but not browned.
Remove from the oven and allow to cool on the cookie sheet for 1 minute.
Gently transfer the cookies to a cooling rack.
Whisk the glazing ingredients ( apple cider and powdered sugar) together.
Spoon the glaze over the cooled cookies allowing the glaze to firm.
Sprinkle with cinnamon.