This Funfetti Cookie Cake is one big, soft cookie baked in a pan, then finished with a pretty pink buttercream border. It’s chewy in the center, slightly crisp on the edges, and full of colorful sprinkles, perfect for birthdays, Valentine’s Day, or any celebration.
Why You’ll Love This Recipe
- One big cookie (no cutting dough into pieces)
- Soft, chewy, and thick
- Easy to decorate
- Great for parties and celebrations
- Looks like a cake but tastes like a cookie
Ingredients
Funfetti Cookie Cake
- 3/4 cup unsalted butter, softened
- 3/4 cup brown sugar
- 1/4 cup granulated sugar
- 1 large egg
- 1 teaspoon vanilla extract
- 1 3/4 cups all-purpose flour
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1/2 cup rainbow sprinkles (jimmies work best)
Buttercream Frosting
- 1/2 cup unsalted butter, softened
- 1 1/2 cups powdered sugar
- 1 teaspoon vanilla extract
- 1–2 tablespoons milk or cream
- Pink food coloring
- Extra sprinkles for topping
Preparation Steps
Step 1: Make the Dough
Preheat oven to 350°F (175°C).
In a bowl, cream butter, brown sugar, and white sugar until fluffy.
Add egg and vanilla, mix well.
Step 2: Add Dry Ingredients
Mix in flour, baking soda, and salt until just combined.
Fold in sprinkles gently.
Step 3: Bake
Press dough evenly into a greased or parchment-lined 8 or 9-inch round pan.
Bake for 20–25 minutes, until edges are golden and center is set.
Cool completely in the pan.
Step 4: Make the Frosting
Beat butter until smooth.
Add powdered sugar, vanilla, and milk.
Beat until creamy. Add pink food coloring.
Step 5: Decorate
Pipe frosting around the edge using a star tip.
Add sprinkles on top.
Variations
- Use Valentine sprinkles instead of rainbow
- Add white chocolate chips
- Make it heart-shaped using a heart pan
- Use chocolate buttercream
- Add a message in the center
Tips
- Do not overbake (soft center is key)
- Let the cookie cool before frosting
- Use jimmies, not nonpareils (they won’t bleed)
- Store covered to keep soft
- Tastes even better the next day
Serving Suggestions
- Slice like a cake
- Serve with milk or ice cream
- Great for parties and sharing
- Perfect as a birthday cookie cake
Prep Time / Baking Time / Total Time
Prep Time: 15 minutes
Baking Time: 20–25 minutes
Total Time: 40 minutes
FAQs
Can I make this ahead?
Yes, bake the cookie a day ahead and frost before serving.
Can I freeze it?
Freeze the unfrosted cookie, wrapped well.
Can I use store-bought frosting?
Yes, but homemade tastes better.
Can I make it thicker?
Use an 8-inch pan for a thicker cookie.
Conclusion
This Funfetti Cookie Cake is the easiest way to turn a cookie into a celebration dessert. Soft, colorful, and fun to decorate, it’s always a crowd favorite.