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Birthday Cake Cookie Sandwiches

Instead of reaching for that box cake for your child’s next birthday party, make these cute and unique Birthday Cake Cookie Sandwiches. The cookies are made to taste like cake, but in cookie form. 

Place a thick layer of creamy buttercream in between two cookies, and then roll the cookies in some colorful sprinkles. The kids will love these bite-sized, colorful, and fun cookie sandwiches!

  • Birthday Cake Cookies:
  • 1 1/2 cups All Purpose Flour
  • 1/2 tablespoon Baking Powder
  • 1/2 teaspoon Salt
  • 5 tablespoons Unsalted Butter, at Room Temperature
  • 1/2 cup Sugar
  • 1/2 cup Sour Cream
  • 1 teaspoon Pure Vanilla Extract
  • 2 tablespoons Milk
  • 3 tablespoons Colorful Sprinkles
  • Buttercream Filling:
  • 1 cup (2 Sticks) Unsalted Butter, At Room Temperature
  • 2 cups Confectioners Sugar
  • Pinch Salt
  • 1 teaspoon Pure Vanilla Extract
  • Colorful Sprinkles, for rolling the cookies in

To make the birthday cake cookies, preheat the oven to 350 degrees F. Line 2 baking sheets with parchment paper, or silicone mats.  Set aside until needed.

In a medium bowl, whisk together the flour, baking powder, and salt.  Set aside.

In the bowl of a stand mixer, beat together the butter and sugar until light and creamy. Add the sour cream and mix until fully incorporated. Mix in the vanilla.

With the mixer running on low speed, slowly add the flour mixture. Add the milk and then increase the speed to medium and beat until the batter is moist and thick.

Using a tablespoon, scoop small rounds of dough into the palm of your hand. Roll the dough into a ball and then flatten it into a small, flat disc. Bake the cookies for about 8-10 minutes until they have set and the edges start to turn a light golden brown. Remove the cookies from the oven and transfer them to a cooling rack to cool completely.

While the cookies are cooling, make the buttercream filling. Cream the butter in the bowl of stand mixer fitted with the whisk attachment until light and fluffy, about 5 minutes. 

Add the confectioners sugar and salt and mix (gradually increasing in speed) until the sugar is fully incorporated, about 5 minutes. You may need to stop the mixer and scrape down the sides of the bowl a couple times. Add the vanilla and whisk until the mixture is light and fluffy, about 3 minutes. Once the buttercream is creamy and airy, the buttercream is ready.

To create the cookie sandwiches, match the cookies in pairs. Place each pair next to each other, with one of the cookies topside down.  Frost a thick layer of buttercream on the cookie that it topside down. Top with the other cookie and repeat with the remaining cookies.

Place a birthday candle into the top of the birthday boy/girls cookie sandwich. These last up to 5 days in a sealed container.

Find more party planning inspirations for Birthday Cakes

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