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Congratulations Banner Cookie Cake

Congratulations Banner Cookie Cake - featured image

A festive, chewy cookie cake decorated with a colorful frosting banner and sprinkles—perfect for graduations, promotions, birthdays, or any celebration. Quick to make, crowd-pleasing, and easily customizable for dietary needs.

Ingredients

Scale
  • 2 1/4 cups (280g) all-purpose flour
  • 1 tablespoon cornstarch
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 cup (226g) unsalted butter, softened
  • 1 cup (200g) light brown sugar, packed
  • 1/2 cup (100g) granulated sugar
  • 2 large eggs, room temperature
  • 2 teaspoons pure vanilla extract
  • 1 1/2 cups (270g) chocolate chips (mini or regular)
  • 1/3 cup colorful sprinkles
  • For the Banner Frosting:
  • 1/2 cup (113g) unsalted butter, softened
  • 2 cups (240g) powdered sugar, sifted
  • 23 tablespoons heavy cream or milk
  • 1 teaspoon vanilla extract
  • Pinch of salt
  • Gel food coloring (any colors you like)

Instructions

  1. Preheat oven to 350°F (175°C). Line a 9–10-inch round cake pan with parchment paper and lightly grease the sides.
  2. In a medium bowl, whisk together flour, cornstarch, baking soda, and salt. Set aside.
  3. In a large bowl, beat softened butter, brown sugar, and granulated sugar until light and fluffy (2-3 minutes).
  4. Beat in eggs one at a time, then add vanilla extract and mix until smooth.
  5. Gradually add dry ingredients to wet mixture, mixing on low or by hand until just combined.
  6. Fold in chocolate chips and sprinkles. Reserve a handful of chips for topping if desired.
  7. Press dough evenly into prepared pan. Add extra chips or sprinkles on top if you like.
  8. Bake for 22–28 minutes, until edges are golden brown and center is set but still soft.
  9. Cool in pan for 15–20 minutes, then lift out using parchment paper. Cool completely on a wire rack before decorating.
  10. For the banner frosting: Beat butter until creamy. Gradually add powdered sugar, then cream or milk, vanilla, and salt. Beat until fluffy and smooth. Divide and color with gel food coloring as desired.
  11. Pipe a banner across the cooled cookie cake using a piping bag or zip-top bag. Write your message and scatter extra sprinkles.
  12. Slice into wedges or squares and serve at room temperature.

Notes

For gluten-free, use a 1:1 gluten-free flour blend. For dairy-free, use plant-based butter and oat milk. Don’t overmix the dough for best texture. Cool completely before frosting. Double the recipe for a crowd and bake in a rimmed baking sheet. Practice piping on parchment if you’re new to decorating.

Nutrition

Keywords: cookie cake, party dessert, congratulations, celebration, banner cake, easy dessert, chewy cookie, birthday, graduation, chocolate chip, sprinkles