Purple Monster Cookie Sandwiches

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Halloween calls for playful, slightly spooky, and super tasty treats—and these Purple Monster Cookie Sandwiches are exactly that! Soft, chewy cookies are sandwiched together with a fluffy purple buttercream filling, then decorated with candy eyes for a monster-approved dessert.

They’re perfect for kids’ parties, classroom treats, or just a fun baking day at home. Don’t worry—they look spooky, but they taste sweet and irresistible!

Why You’ll Love These Cookies

  1. Kid-friendly fun – Great for decorating with little helpers.
  2. Customizable – Change frosting colors and add different candy eyes.
  3. Make-ahead friendly – Bake cookies in advance and assemble later.
  4. Festive & fun – A must-have for Halloween dessert tables.

Ingredients

For the Cookies

  • 2 ¼ cups all-purpose flour
  • ½ teaspoon baking soda
  • ½ teaspoon salt
  • ¾ cup unsalted butter, softened
  • ¾ cup brown sugar, packed
  • ½ cup granulated sugar
  • 1 large egg
  • 1 egg yolk
  • 2 teaspoons vanilla extract
  • 1 cup white chocolate chips (optional)
  • Purple gel food coloring

For the Filling

  • ½ cup unsalted butter, softened
  • 2 cups powdered sugar
  • 1 teaspoon vanilla extract
  • 1–2 tablespoons heavy cream or milk
  • Purple gel food coloring

Decorations

  • Candy eyes (various sizes for fun monster looks)

Instructions

Step 1 – Make the Cookie Dough

  1. Preheat oven to 350°F and line baking sheets with parchment.
  2. In a medium bowl, whisk together flour, baking soda, and salt.
  3. In a large bowl, beat butter, brown sugar, and granulated sugar until creamy.
  4. Add egg, egg yolk, and vanilla. Mix until combined.
  5. Gradually mix in the dry ingredients.
  6. Stir in white chocolate chips (optional).
  7. Add purple food coloring until the dough reaches your desired spooky shade.

Step 2 – Bake the Cookies

  1. Scoop dough into 1 ½ tablespoon portions and place on baking sheets.
  2. Bake 9–11 minutes, until edges are set but centers are soft.
  3. Cool completely before assembling.

Step 3 – Make the Filling

  1. Beat butter until fluffy.
  2. Add powdered sugar, vanilla, and cream. Beat until smooth.
  3. Tint with purple food coloring until vibrant.

Step 4 – Assemble the Monsters

  1. Pipe or spread filling onto the bottom of one cookie.
  2. Sandwich with another cookie.
  3. Add candy eyes on top while the filling is still soft (so they stick).
Purple Monster Cookie Sandwiches

Variations

  • Green or orange monsters – Swap food coloring for variety.
  • Chocolate monster cookies – Use cocoa powder in the dough.
  • Different fillings – Try cream cheese frosting or marshmallow fluff.

Storage

  • Store cookie sandwiches in an airtight container at room temperature for 2 days, or refrigerate for up to 5 days.
  • Freeze cookies (without filling) for up to 2 months. Assemble fresh when ready to serve.

FAQs

Can I make these ahead of time?
Yes! Bake and freeze the cookies, then assemble with frosting and eyes before serving.

What if I don’t have a piping bag?
You can spread the frosting with a spoon or zip-top bag with the corner snipped off.

Can I use store-bought cookie dough?
Absolutely! Just tint the dough purple before baking.

Where do I find candy eyes?
Most grocery stores carry them in the baking aisle during Halloween, or you can order online year-round.

Conclusion

These Purple Monster Cookie Sandwiches are spooky, silly, and sweet—making them the ultimate Halloween cookie treat. With chewy purple cookies, creamy filling, and goofy candy eyes, they’re guaranteed to disappear from the dessert table. 👀💜

Purple Monster Cookie Sandwiches
Michonne Zendaya

Purple Monster Cookie Sandwiches

Fun and festive purple monster cookie sandwiches filled with buttercream — a spooky-sweet Halloween treat.
Print Recipe Pin Recipe
Prep Time 20 minutes
Cook Time 12 minutes
Total Time 32 minutes
Servings: 12 cookie sandwiches
Course: Dessert, Snack
Cuisine: American
Calories: 310
Ingredients Equipment Method Notes

Ingredients
  

  • 1 cup butter, softened
  • 1 cup granulated sugar
  • 1 cup brown sugar, packed
  • 2 large eggs
  • 1 tsp vanilla extract
  • 3 cups all-purpose flour
  • 1 tsp baking soda
  • 1/2 tsp baking powder
  • 1/2 tsp salt
  • purple food coloring as needed
  • 1 cup unsalted butter (for frosting)
  • 3 cups powdered sugar (for frosting)
  • 2 tbsp milk (for frosting)
  • 1 tsp vanilla extract (for frosting)
  • 24 candy eyes, for decoration

Equipment

  • mixing bowls
  • electric mixer
  • measuring cups and spoons
  • parchment paper
  • baking sheets
  • wire cooling rack
  • spatula

Method
 

  1. Preheat oven to 350°F (175°C). Line baking sheets with parchment paper.
  2. Cream together softened butter, granulated sugar, and brown sugar until light and fluffy.
  3. Beat in eggs one at a time, then stir in vanilla extract.
  4. In a separate bowl, whisk together flour, baking soda, baking powder, and salt. Gradually add dry mixture to wet ingredients and mix until combined.
  5. Add purple food coloring until desired shade is reached. Scoop dough onto prepared baking sheets.
  6. Bake 10–12 minutes, until cookies are set. Let cool completely on a wire rack.
  7. For frosting: Beat butter until smooth. Gradually add powdered sugar, milk, and vanilla; beat until fluffy.
  8. Spread frosting on half the cookies and sandwich with remaining cookies. Decorate with candy eyes to create monster faces.

Notes

Store cookie sandwiches in an airtight container at room temperature for 2 days or refrigerate for up to 5 days.