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Ultimate Buttercream Cookie Cake Class of 2026

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A chewy, giant cookie base topped with creamy, fluffy buttercream frosting, perfect for graduation celebrations and easy to make with simple pantry ingredients.

Ingredients

Scale
  • 2 ½ cups all-purpose flour (310 grams)
  • 1 teaspoon baking soda
  • ½ teaspoon salt
  • 1 cup unsalted butter, softened (226 grams)
  • 1 cup packed light brown sugar (220 grams)
  • ½ cup granulated sugar (100 grams)
  • 2 large eggs, room temperature
  • 2 teaspoons pure vanilla extract
  • 1 ½ cups semi-sweet chocolate chips (270 grams)
  • 1 cup unsalted butter, softened (226 grams) for buttercream
  • 4 cups powdered sugar (480 grams), sifted
  • 2 teaspoons pure vanilla extract for buttercream
  • 2–3 tablespoons whole milk or heavy cream (30–45 ml)
  • Pinch of salt
  • Food coloring (optional)

Instructions

  1. Preheat your oven to 350°F (175°C). Grease your baking pan or line it with parchment paper.
  2. In a bowl, whisk together flour, baking soda, and salt. Set aside.
  3. Using a mixer, beat softened butter with brown sugar and granulated sugar until light and fluffy, about 3-4 minutes.
  4. Beat in eggs one at a time, then mix in vanilla extract until fully combined.
  5. Gradually add the flour mixture to the butter mixture, mixing on low speed until just combined.
  6. Fold in chocolate chips gently with a spatula.
  7. Transfer the dough into the prepared pan and smooth it out evenly to about 1-inch thickness.
  8. Bake for 25-30 minutes until edges are golden and a toothpick inserted near the center comes out with a few moist crumbs.
  9. Cool the cookie cake completely in the pan on a wire rack for at least 45 minutes.
  10. Prepare the buttercream by beating softened butter on medium speed until creamy, about 2 minutes.
  11. Gradually add powdered sugar, alternating with milk and vanilla extract, beating until light and fluffy, about 3-5 minutes. Add a pinch of salt.
  12. Divide and tint frosting with food coloring if desired.
  13. Spread or pipe the buttercream over the cooled cookie cake and decorate with “Class of 2026” or preferred designs.
  14. Serve immediately or chill for 30 minutes to set the frosting. Store leftovers wrapped tightly in the fridge.

Notes

Cool the cookie cake completely before frosting to prevent buttercream from melting. Adjust powdered sugar or milk to achieve desired buttercream consistency. Use room temperature ingredients for best results. For gluten-free, substitute flour with almond or gluten-free blend. For dairy-free, use vegan butter and plant-based milk.

Nutrition

Keywords: cookie cake, buttercream frosting, graduation dessert, celebration treat, easy cookie cake, chewy cookie, party dessert

Find it online: https://bitematrix.com/ultimate-buttercream-cookie-cake-class-of-2026-easy-recipe-for-perfect-celebration-treats/