1
Add cubed cold butter and dry ingredients into your stand mixer bowl.
2
Cut butter into the flour with the mixer on low until a few dime- and pea-sized pieces remain.
3
Stream in cold water and mix on low just until combined.
4
Finish dough by hand on the counter, bringing it together into a single rough mass.
5
Form dough into a 1”-thick brick, then wrap and chill until firmy set.
6
Roll dough out to ⅛" to ¼" thick.
7
Cut into desired shapes and place on lined baking sheets.
8
Mix cinnamon and sugar together.
9
Slightly dampen the tops of the cookies with water, and sprinkle generously with cinnamon and sugar.
10
Bake cookies until deep golden-brown and super-flaky.