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Sweet Potato Marshmallow Sandwich Cookies

Sweet Potato Marshmallow Sandwich Cookies


  • Author: Jackson Walker
  • Total Time: ~1 hr 20 min
  • Yield: ~36 sandwich cookies

Description

Everything you love about sweet potato casserole—warm spices, tender sweetness, and fluffy marshmallow goodness—transformed into soft, spiced cookies with a dreamy marshmallow filling. A nostalgic holiday treat in every bite.


Ingredients

Scale

Sweet Potato Cookies:

2 cups mashed roasted sweet potato (about 23 large sweet potatoes)

2 cups unsalted butter, room temp

2 cups light brown sugar, packed

1 cup granulated sugar

4 large eggs

4 tsp vanilla extract

6 cups all-purpose flour

4 tsp baking powder

2 tsp baking soda

2 tsp ground cinnamon

2 tsp ground nutmeg

1 tsp ground ginger

1 tsp fine sea salt

Marshmallow Filling:

2 cups unsalted butter, room temp

4 cups powdered sugar

2 cups marshmallow fluff

4 tsp vanilla extract

4 tbsp heavy cream (as needed for consistency)


Instructions

Make Cookie Dough: Cream butter, brown sugar, and granulated sugar until fluffy. Beat in eggs, vanilla, and mashed sweet potato.

Dry Ingredients: Whisk flour, baking powder, baking soda, cinnamon, nutmeg, ginger, and salt. Gradually add to wet ingredients until a soft dough forms. Chill 30 minutes.

Bake: Preheat oven to 350°F (175°C). Scoop dough into 1½-inch balls, place on lined sheets, and bake 10–12 minutes until set and slightly golden. Cool completely.

Make Filling: Beat butter until creamy. Add powdered sugar, marshmallow fluff, and vanilla, mixing until fluffy. Add cream as needed.

Assemble: Spread or pipe filling onto the flat side of one cookie, then sandwich with another.

Serve: Enjoy immediately or store in an airtight container.

  • Prep Time: 35 min (plus chilling)
  • Cook Time: 12 min/batch

Nutrition

  • Calories: 290 /sandwich cookie
  • Sugar: 25g /sandwich cookie
  • Fat: 13g /sandwich cookie
  • Carbohydrates: 42g /sandwich cookie
  • Fiber: 1g /sandwich cookie
  • Protein: 3g /sandwich cookie