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Soft Diploma Sugar Cookie Sandwiches Recipe Easy Homemade Buttercream Filling

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Soft diploma sugar cookie sandwiches with creamy buttercream filling are tender, sweet, and perfect for any occasion. These cookies have a soft, pillowy texture paired with a rich, silky buttercream that makes every bite a little celebration.

Ingredients

Scale
  • 2 ¾ cups (345g) all-purpose flour
  • 1 teaspoon baking powder
  • ½ teaspoon baking soda
  • ½ teaspoon salt
  • 1 cup (227g) unsalted butter, softened
  • 1 ½ cups (300g) granulated sugar
  • 2 large eggs, room temperature
  • 2 teaspoons pure vanilla extract (or almond extract for a twist)
  • Optional: 1 tablespoon sour cream or Greek yogurt
  • For the Buttercream Filling:
  • 1 cup (227g) unsalted butter, softened
  • 3–4 cups (360-480g) powdered sugar, sifted
  • 2 teaspoons pure vanilla extract
  • 2–3 tablespoons heavy cream or milk
  • Pinch of salt

Instructions

  1. Preheat oven to 350°F (175°C) and line two baking sheets with parchment paper or silicone mats.
  2. In a medium bowl, whisk together flour, baking powder, baking soda, and salt. Set aside.
  3. In a mixer bowl, beat softened butter with granulated sugar until light and fluffy, about 3-4 minutes.
  4. Beat in eggs one at a time, then stir in vanilla extract. If using, mix in sour cream or Greek yogurt now.
  5. Slowly add the flour mixture in batches, mixing on low speed just until combined. Do not overmix.
  6. Using a cookie scoop or spoon, drop rounded tablespoons of dough onto baking sheets, spacing about 2 inches apart. Lightly flatten each mound.
  7. Bake for 10-12 minutes until edges are set but centers look soft. Watch closely at minute 10.
  8. Transfer cookies to a wire rack and cool completely before assembling.
  9. To make buttercream, beat softened butter on medium speed until smooth and creamy.
  10. Gradually add powdered sugar, mixing well. Add vanilla extract, pinch of salt, and heavy cream. Beat on high for 3 minutes until fluffy. Adjust consistency as needed.
  11. Spread a generous dollop of buttercream on the flat side of one cookie, then gently press a second cookie on top. Repeat for all cookies.

Notes

Use room temperature ingredients for best results. Do not overbake cookies to keep them soft. Sift powdered sugar to avoid lumps in buttercream. Chill buttercream if too soft before assembling. Store cookies in airtight container with a slice of bread to maintain moisture.

Nutrition

Keywords: sugar cookie sandwiches, buttercream filling, soft cookies, homemade cookies, easy dessert, cookie sandwich recipe

Find it online: https://chrisfeasts.com/soft-diploma-sugar-cookie-sandwiches-recipe-easy-homemade-buttercream-filling/