Sweet Potato-Marshmallow Sandwich Cookies

• 1 cup butter, softened
• 3/4 cup powdered sugar
• 3/4 cup canned sweet potato puree
• 2 teaspoons vanilla extract
• 2 1/2 cups all-purpose flour
• 1/4 teaspoon baking powder
• 1/8 teaspoon salt
• 1 teaspoon freshly grated nutmeg
• 3/4 teaspoon ground cardamom
• 1/2 teaspoon ground ginger
• 1/2 teaspoon ground cinnamon
• Wax and parchment paper
• 1 tablespoon Demerara sugar
• 1/2 cup marshmallow creme
• 1/2 cup butter, softened
• 2 cups powdered sugar
• 1 1/4 teaspoons meringue powder
• 1 teaspoon vanilla extract

1. Beat butter at medium speed with an electric mixer until creamy. Gradually add 3/4 cup powdered sugar, beating until smooth. Stir in 3/4 cup canned sweet potato puree and 2 tsp. vanilla until blended.
2. Stir together flour and next 6 ingredients. Gradually add flour mixture to butter mixture, beating at low speed until blended.
3. Divide dough in half; flatten each into a disk. Roll each disk to 1/4-inch thickness between 2 sheets of wax paper. Transfer dough, in wax paper, to a baking sheet; chill 1 hour.
4. Preheat oven to 350u0b0. Working with 1 portion of dough at a time, remove top wax paper; cut with a 2-inch round cutter, rerolling dough scraps once. Place 1 inch apart on parchment paper-lined baking sheets; sprinkle with Demerara sugar.
5. Bake at 350u0b0 for 12 to 14 minutes or until edges are golden. Cool on baking sheets 1 minute; transfer to wire racks. Cool completely.
6. Beat marshmallow creme and softened butter with a heavy-duty electric stand mixer at medium speed 2 minutes or until smooth; gradually add 2 cups powdered sugar. Add meringue powder, and beat at high speed 2 minutes or until fluffy. Stir in 1 tsp. vanilla extract. Spread about 2 tsp. mixture between cooled shortbread rounds to form sandwiches. Store in airtight containers.

butter, powdered sugar, canned sweet potato puree, vanilla, flour, baking powder, salt, nutmeg, ground cardamom, ground ginger, ground cinnamon, parchment, sugar, marshmallow crueme, butter, powdered sugar, meringue powder, vanilla

Taken from www.myrecipes.com/recipe/sweet-potato-marshmallow-cookies (may not work)