Looking for a sweet treat that makes every occasion special? Funfetti Sugar Cookie Bars are your answer! They are soft, chewy, and packed with colorful sprinkles that add a festive touch. Plus, they’re easy to make, and you can whip them up in no time. Join me as we dive into the tasty world of these irresistible bars and discover how to make your own today!
Why I Love This Recipe
- Fun and Festive: These Funfetti Sugar Cookie Bars are perfect for celebrations, bringing a burst of color and joy to any occasion.
- Easy to Make: The recipe is straightforward and requires minimal effort, making it ideal for bakers of all skill levels.
- Deliciously Soft: The cookie bars are soft and chewy, creating a delightful texture that pairs perfectly with the creamy frosting.
- Customizable: You can easily modify the sprinkles or frosting to match any theme or personal preference, making it a versatile treat.
Ingredients
To make Funfetti Sugar Cookie Bars, you need specific ingredients. Here’s the complete list:
- 2 ¾ cups all-purpose flour
- 1 teaspoon baking powder
- ½ teaspoon baking soda
- ½ teaspoon salt
- 1 cup unsalted butter, softened
- 1 ½ cups granulated sugar
- 1 large egg
- 2 teaspoons vanilla extract
- 1 cup rainbow sprinkles (plus extra for decoration)
- 1 cup powdered sugar (for frosting)
- 2 tablespoons milk
- 1 teaspoon vanilla extract (for frosting)
These ingredients work together to create the perfect sweet treat. The flour gives the bars their structure. The baking powder and baking soda help them rise. Salt adds flavor, while butter and sugar make them rich and sweet.
The egg and vanilla extract blend nicely into the mix. Rainbow sprinkles add fun and color. For the frosting, powdered sugar, milk, and vanilla come together to create a creamy topping.
When you gather these ingredients, you set yourself up for success. Enjoy the process of baking and the sweet rewards that follow!

Step-by-Step Instructions
Prepping the Oven and Pan
- Preheat oven to 350°F (175°C).
- Grease or line a 9x13-inch baking pan.
First, I set my oven to 350°F. This preheat helps the bars bake evenly. Next, I prepare my baking pan. I like to grease it or use parchment paper. This makes it easy to lift the bars out later.
Mixing Dry Ingredients
- Whisk together flour, baking powder, baking soda, and salt.
In a medium bowl, I whisk flour, baking powder, baking soda, and salt. This step mixes the dry ingredients well. It ensures even rising and flavor throughout the bars.
Creaming Butter and Sugar
- Beat softened butter and granulated sugar until fluffy.
- Incorporate egg and vanilla extract.
In a large bowl, I beat softened butter and sugar. I do this until the mixture is fluffy and light. Then, I add one egg and two teaspoons of vanilla. This mix creates a rich base for the bars.
Combining Ingredients
- Gradually mix dry ingredients into wet ingredients.
- Fold in rainbow sprinkles.
Now, I slowly mix the dry ingredients into the wet mixture. I stop as soon as I see no dry flour. Then, I gently fold in the rainbow sprinkles. This adds fun color and texture to the dough.
Baking
- Press dough into baking pan and bake for 20-25 minutes.
- Check doneness with a toothpick.
I press the dough evenly into my prepared pan. Next, I place it in the oven for 20 to 25 minutes. To check if it’s done, I insert a toothpick into the center. If it comes out clean, the bars are ready!
Cooling
- Allow the bars to cool in the pan for 10 minutes.
- Transfer to a wire rack to cool completely.
After baking, I let the bars cool in the pan for about 10 minutes. Then, I move them to a wire rack. This cooling step helps them firm up and makes slicing easier.
Preparing the Frosting
- Mix powdered sugar, milk, and vanilla extract until smooth.
While the bars cool, I prepare the frosting. In a bowl, I mix powdered sugar, milk, and a teaspoon of vanilla. I whisk until it’s smooth. This frosting will add a sweet finish to the bars.
Final Assembly
- Spread frosting over cooled cookie bars.
- Decorate with extra sprinkles.
- Cut into squares for serving.
Once the bars are fully cooled, I spread the frosting evenly on top. For a fun touch, I sprinkle more rainbow sprinkles on the frosting. Finally, I slice the bars into squares for serving. Enjoy!
Tips & Tricks
Baking Essentials
- Always use room temperature ingredients. This helps them mix better.
- A light-colored pan gives you even cooking. Dark pans can burn the edges.
Perfecting the Cookie Bars
- Mix the batter just enough. Overmixing makes them tough.
- Check for doneness with a toothpick. It should come out clean.
Frosting Tips
- Whisk the frosting until smooth. This gives it a nice texture.
- Add more milk for a thinner frosting. Less milk makes it thicker.
These tips will help you make the best Funfetti Sugar Cookie Bars ever!
Pro Tips
- Tip Title: Use Room Temperature Ingredients: Ensure your butter and egg are at room temperature for a smoother batter and better rise.
- Tip Title: Don't Overmix: Mix the dry ingredients into the wet ingredients just until combined to keep your cookie bars tender.
- Tip Title: Cooling Time: Allow the bars to cool completely before frosting to prevent the frosting from melting.
- Tip Title: Storage Tips: Store cookie bars in an airtight container at room temperature for up to a week for maximum freshness.
Variations
Flavor Variations
You can make these cookie bars even more fun! Try adding almond extract for a sweet twist. Just a teaspoon will bring a new flavor to the bars. If you love chocolate, consider using chocolate chips instead of sprinkles. They add richness and a nice texture to each bite. Both options create a unique treat that everyone will love.
Frosting Variations
Frosting can change the game for these cookie bars. You can swap cream cheese for the usual frosting. This gives a tangy flavor that pairs well with the sweetness. Try adding food coloring to the frosting for festive looks. Bright colors make these bars perfect for parties or special occasions. Get creative and mix colors to match any theme!
Gluten-Free Option
Want a gluten-free version? It’s simple! Just swap all-purpose flour for a gluten-free blend. Many brands work well in baking. This way, you can enjoy the same great taste without gluten. Follow the same steps in the recipe, and you’ll have a delicious treat for everyone!
Storage Info
Storing Leftovers
Keep your Funfetti Sugar Cookie Bars in an airtight container. This helps keep them fresh. You should store them at room temperature. If stored properly, they can last about a week. You can also keep them in a cool, dry place, away from sunlight.
Freezing Instructions
If you want to keep them longer, freeze un-frosted bars. This helps to maintain their taste and texture. Wrap them tightly in plastic wrap before placing them in a freezer bag. When you want to enjoy them, simply thaw them at room temperature. Once thawed, add your frosting for the best flavor. This way, each bite remains sweet and delightful.
FAQs
Can I make these cookie bars ahead of time?
Yes, they can be made a day in advance. Simply store them in an airtight container. This way, you have a sweet treat ready for any occasion. Just remember to frost them right before serving for the best taste and look.
How long do Funfetti Sugar Cookie Bars last?
They typically last for about a week at room temperature. If you want them to stay fresh longer, store them in an airtight container. You can also put them in the fridge, but let them warm up a bit before eating.
Can I substitute the butter with oil?
Yes, but the texture may vary slightly. Using oil can make the bars a bit more moist. If you want a chewier cookie, consider using melted coconut oil or a light vegetable oil.
What can I use instead of rainbow sprinkles?
You can use mini chocolate chips, nuts, or dried fruit. This gives a fun twist to the bars. Each option offers a different taste and texture, so feel free to get creative with your mix-ins!
You now have a complete guide to making fun and tasty Funfetti Sugar Cookie Bars. We covered the needed ingredients, detailed steps for baking, and some helpful tips. Remember, you can switch flavors with extracts or toppings to make these bars your own. Store them well or freeze for later use. With these easy instructions, you can enjoy delicious cookie bars any time. Happy baking!