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Perfect Diploma Rolled Sugar Cookies with Cinnamon Swirl

diploma rolled sugar cookies - featured image

Soft, buttery rolled sugar cookies with a cozy cinnamon swirl, perfect for celebrations or an afternoon treat. This easy recipe delivers tender cookies with a subtle cinnamon warmth and a charming swirl pattern.

Ingredients

Scale
  • 2 ¾ cups (345g) all-purpose flour
  • 1 teaspoon baking powder
  • 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
  • ¼ cup (50g) granulated sugar (for cinnamon swirl)
  • 2 tablespoons ground cinnamon (freshly ground preferred)

Instructions

  1. In a medium bowl, whisk together flour, baking powder, and salt. Set aside.
  2. In a large bowl, beat softened butter with granulated sugar until light and fluffy, about 3-4 minutes.
  3. Beat in eggs one at a time, then add vanilla extract and mix until just combined.
  4. Gradually add dry ingredients to wet ingredients, mixing on low speed or folding by hand until just combined. Dough should be soft but not sticky.
  5. In a small bowl, mix granulated sugar and ground cinnamon until evenly combined.
  6. Lightly flour work surface and rolling pin. Roll dough into a 12×9 inch rectangle about ¼ inch thick. Chill dough for 10 minutes if too soft.
  7. Evenly sprinkle cinnamon sugar over dough and gently press it in with rolling pin.
  8. Roll dough tightly from one long edge into a log. Wrap in plastic wrap and refrigerate for at least 1 hour or up to overnight.
  9. Preheat oven to 350°F (175°C). Line baking sheets with parchment paper.
  10. Slice chilled dough log into ¼ inch thick rounds and place 2 inches apart on baking sheets.
  11. Bake for 10-12 minutes until edges are lightly golden but centers remain soft.
  12. Cool cookies on baking sheet for 5 minutes, then transfer to wire rack to cool completely.

Notes

Keep dough cool to prevent spreading. Use just enough flour to prevent sticking but not too much to avoid dry cookies. Do not overbake; cookies should be soft in the center. Chill dough log well before slicing for uniform cookies. Dough can be refrigerated up to 24 hours or frozen up to 3 months.

Nutrition

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