Line a baking sheet with parchment paper and set aside.
Beat brown sugar and butter in a stand mixer or bowl with hand mixer until fluffy.
Slowly add flour in to form a stiff dough.
Plop dough on a floured surface. If dough seems too soft, add little bits of flour to bring the dough into a more pliable mix.
Roll out the dough roughly ½-inch thick.
Using cookie cutters, firmly press cookies and very carefully place on parchment lined cookie sheets leaving a little space between cookies. They will not spread much.
Re-roll dough and repeat until all dough is used.
Bake for 8-10 minutes until lightly golden brown. Do not over bake.
Cool completely on a rack before decorating or storing.
Notes
You can use any combination of flour from all whole wheat to all all-purpose or split it half and half. Anything goes here!
I like to decorate simply with melted chocolate or powdered sugar.
Store in an airtight container on the counter for up to a week. Freeze for longer storage.