If you're craving something sweet and colorful, Funfetti Sugar Cookie Bars are your answer! These chewy treats burst with bright sprinkles and a buttery flavor that everyone will love. Whether you're preparing for a party or just indulging yourself, this simple recipe has you covered. In this post, I’ll guide you through each step, share my best tips, and even suggest fun variations. Let’s dive in and make some magic happen in your kitchen!
Why I Love This Recipe
- Deliciously Fun: These Funfetti Sugar Cookie Bars are colorful and bring a festive feel to any occasion, making them a hit at parties and gatherings.
- Easy to Make: The step-by-step instructions ensure that even beginner bakers can create these tasty treats with ease.
- Customizable: Feel free to swap out the frosting or sprinkles to match different themes or personal preferences, allowing for endless variations!
- Soft and Chewy: The cookie bars have a perfect texture that is soft and chewy, making them irresistible to anyone who tries them.
Ingredients
When making Funfetti Sugar Cookie Bars, gathering the right ingredients is key. Here’s what you will need:
- 2 ½ cups all-purpose flour
- 1 teaspoon baking powder
- ½ teaspoon baking soda
- ½ teaspoon salt
- ¾ cup unsalted butter, softened to room temperature
- 1 cup granulated sugar
- ½ cup brown sugar, packed firmly
- 2 large eggs
- 1 teaspoon pure vanilla extract
- 1 cup rainbow sprinkles (plus additional for topping)
- 1 cup frosting of your choice (vanilla frosting is highly recommended)
These ingredients create a rich and sweet base for the bars. The combination of sugars adds depth to the flavor. Butter provides moisture, making the bars soft and chewy. The rainbow sprinkles give a fun look and a pop of sweetness.
You can also choose optional frostings or toppings. Different frostings can change the flavor. Try chocolate, cream cheese, or even a fruity frosting for fun variations. Adding nuts or chocolate chips can also enhance the texture and taste. Each choice lets you customize your treats.

Step-by-Step Instructions
Preparation Steps
1. Preheat the oven: Set your oven to 350°F (175°C). This helps your bars bake evenly.
2. Prepare the baking pan: Use a 9x13 inch pan. Grease it lightly or line it with parchment paper. This makes it easy to remove the bars later.
3. Mix dry ingredients: In a medium bowl, combine 2 ½ cups flour, 1 teaspoon baking powder, ½ teaspoon baking soda, and ½ teaspoon salt. Whisk them together well and set aside.
Combining Ingredients
1. Cream the butter and sugars: In a large bowl, beat ¾ cup softened butter, 1 cup granulated sugar, and ½ cup packed brown sugar. Use an electric mixer on medium speed until light and fluffy, about 3-4 minutes.
2. Add eggs and vanilla: Add 2 large eggs one at a time, mixing well after each. Pour in 1 teaspoon pure vanilla extract and mix until combined.
3. Mix in dry ingredients: Gradually add your dry mix to the wet mix on low speed. Stir just until you see no flour streaks. Avoid overmixing to keep the bars chewy.
4. Fold in sprinkles: Gently add 1 cup rainbow sprinkles using a spatula. Make sure they're evenly spread throughout the dough.
Baking and Cooling Process
1. Transfer dough: Spoon the prepared dough into your greased or lined pan. Use a spatula to spread it evenly and smooth the top.
2. Bake: Place the pan in the oven and bake for 20-25 minutes. Check them when the edges turn light golden brown. A toothpick inserted in the center should come out clean.
3. Cool completely: Once baked, take the pan out of the oven. Let the bars cool completely in the pan on a wire rack. This helps them firm up before frosting.
Tips & Tricks
Perfecting Your Cookie Bars
To make the best Funfetti Sugar Cookie Bars, avoid overmixing. When you mix too much, the bars can become tough. Mix just until the flour disappears. This keeps the texture chewy and soft.
For light and fluffy cookie bars, cream the butter and sugars well. Use an electric mixer and mix for 3 to 4 minutes. The mixture should be pale and airy. This step adds air, making the bars rise nicely.
Serving Suggestions
Present your Funfetti Sugar Cookie Bars with flair. Cut them into squares and place them on a colorful plate. Add extra sprinkles on top for a fun look. You can also drizzle some frosting over the bars for extra sweetness.
Pair these treats with a glass of cold milk or a scoop of vanilla ice cream. They also go well with hot chocolate or coffee. For a party, serve them next to fruit salad or cupcakes.
Making Ahead
You can prepare these cookie bars in advance. Mix the dough and place it in the pan. Cover it tightly with plastic wrap and refrigerate for up to 24 hours. This helps the flavors blend better.
If you want to bake them later, let the dough sit at room temperature for about 30 minutes before baking. This way, your bars will bake evenly and come out perfect.
Pro Tips
- Chill the Dough: For even thicker cookie bars, chill the dough for 30 minutes before baking. This helps the cookies maintain their shape and prevents spreading.
- Use Fresh Sprinkles: Ensure your rainbow sprinkles are fresh and vibrant for the best flavor and appearance. Stale sprinkles can lose their color and crunch.
- Experiment with Frosting: While vanilla frosting is a classic choice, feel free to try different flavors like cream cheese or chocolate for a unique twist.
- Store Properly: Keep leftover cookie bars in an airtight container at room temperature for up to a week, or refrigerate for longer freshness.
Variations
Flavor and Color Variations
You can change the sprinkles to fit any theme. Try pastel sprinkles for Easter. For birthdays, use bright, colorful sprinkles. You can even mix colors for a fun surprise!
If you want a twist, try different frostings. Swap vanilla for chocolate or cream cheese. You can also use fruit-flavored frostings for a unique taste.
Dietary Modifications
If you need gluten-free options, use a gluten-free flour blend. Make sure it has xanthan gum. This will help your bars hold together.
For a vegan version, replace eggs with flax eggs. Mix one tablespoon of flaxseed meal with three tablespoons of water. Let it sit for five minutes to thicken. Use coconut oil or vegan butter instead of regular butter.
Add-ins and Mix-ins
You can make these cookie bars even better with add-ins. Try adding chocolate chips or nuts. Walnuts or pecans add a nice crunch. You can also mix in dried fruits for a sweet twist. Just keep the total amount of mix-ins to about one cup.
Storage Info
Storing the Cookie Bars
To keep your Funfetti sugar cookie bars fresh, use airtight containers. Glass or plastic containers work well. Make sure the bars are completely cool before putting them in. If they are warm, they can get soggy.
You can store the bars at room temperature for a week. For longer storage, keep them in the fridge. Refrigeration helps maintain the texture and flavor. Just remember to let them sit out for a few minutes before serving. This way, they get back some of their softness.
Freezing Instructions
For long-term storage, freezing is a great option. First, cut the cookie bars into squares. Wrap each piece in plastic wrap. Then, place the wrapped bars in a freezer bag or container. Make sure to remove as much air as possible to prevent freezer burn.
When you want to enjoy them, take the bars out and let them thaw in the fridge overnight. If you want them warm, you can heat them in the microwave for a few seconds. This helps bring back their soft and chewy texture.
FAQs
Common Questions
What makes these different from regular sugar cookies? Funfetti Sugar Cookie Bars have a fun twist. They are soft and chewy with colorful sprinkles mixed in. Regular sugar cookies lack sprinkles, making these bars special. The bars also have a thicker texture. You enjoy more cookie goodness in each bite.
Can I use margarine instead of butter? Yes, you can use margarine. However, butter adds rich flavor. Margarine may change the texture slightly. Your bars might turn out softer or less flavorful. If you use margarine, ensure it is softened to room temperature for the best results.
Baking Troubleshooting
Why are my cookie bars too dry? Dry cookie bars often come from overbaking. Make sure to check them around 20 minutes. If the edges are golden brown, they are ready. Also, ensure you measure your flour correctly. Too much flour can lead to dry bars.
Tips for fixing overbaked cookie bars If your bars are dry, try adding frosting. This can add moisture and flavor. You can also serve them with ice cream. The creaminess will balance the dryness and make them more enjoyable.
Serving Advice
How do I cut them without making a mess? To cut your cookie bars cleanly, use a sharp knife. You can also warm the knife with hot water. Wipe the knife clean between cuts for neat slices. This prevents the frosting from smearing.
Best occasions to serve Funfetti Sugar Cookie Bars These bars are great for parties and celebrations. Birthdays and holidays are perfect times. They bring joy and color to any dessert table. You can also serve them at family gatherings or potlucks. Everyone loves a sweet treat!
In this article, we covered the key steps to make Funfetti Sugar Cookie Bars. You learned about the essential ingredients and preparation techniques. I shared tips for perfecting texture and serving suggestions. We explored tasty variations and storage methods to keep them fresh. Remember, baking is all about having fun and creativity. Enjoy your time in the kitchen, and don’t be afraid to experiment with flavors. These cookie bars can bring smiles to any occasion. Happy baking!