Gingerbread Whoopie Pies with Vanilla Buttercream Filling

Ingredients (18)

• For the Cookies:
• 3 3/4 cups all-purpose flour
• 1 teaspoon salt
• 1 teaspoon baking soda
• 1 1/2 teaspoons ground ginger
• 1 teaspoon ground cinnamon
• 1/4 teaspoon ground nutmeg
• 1/4 cup vegetable shortening
• 1 stick butter
• 3/4 cup light brown sugar
• 1 large egg
• 3/4 cup molasses
• 3/4 cup buttermilk
• For the Filling:
• 1 stick butter
• 2 cups powdered sugar
• 2 tablespoons milk
• 1 teaspoon pure vanilla extract