Preheat oven to 375°F. Line baking sheets with parchment paper.

In a medium bowl, whisk together flour, salt, baking soda, and spices.

In a large bowl, beat shortening, butter, and brown sugar until smooth and fluffy.

Add the egg and beat until incorporated.

Mix in half of the flour mixture, then add molasses and remaining flour, alternating with buttermilk.

Drop spoonfuls of dough onto prepared baking sheets, leaving space between.

Bake for 12-15 minutes until edges are firm.

Cool on wire racks before frosting or serving.