With an electric mixture, cream the butter, molasses and brown sugar until smooth. Mix in the spices followed by the flour. Beat until just combined.
Divide the dough in half and chill in the fridge for 1 hour.
Roll the dough on a floured surface with a floured rolling pin to a 1/8 or 1/16 inch thickness. Using a 2 inch or 3 inch round or scalloped cutter, cut out the dough.
Bake at 375F for 6-7 minutes - the edges will begin to brown.
Cool on wire racks.
Store in an airtight container at room temperature.