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Cookie Recipes

Funfetti Cookie Bars for a weeknight

Funfetti Cookie Bars are bright, festive, sweet treats that will put a smile on everyone's faces! It's a super simple…

Funfetti Cookie Bars are bright, festive, sweet treats that will put a smile on everyone's faces! It's a super simple dessert to make and even easier to snack on.

There are days when we ALL need come colorful sprinkles in our lives. Sprinkles are magic. They're bright, happy, fun, and festive.

And they make these bars even more tasty than they already are. Make a batch of these yummy Funfetti Sugar Cookie Bars, and watch them put a big smile on everyone's face!

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🍪 What is a bar cookie or cookie bar?

We love making bar cookies when craving a sweet treat like a cookie but slightly more substantial. We love cookies and cookie bars equally in our house.

A cookie bar is essentially cookies baked in a pan and sliced into bar form. Similar to skillet cookies.

🌈 Why you'll love these funfetti cookie bars

The flavors of funfetti cookies make the best cookie bars! These bars are similar to this popular Chocolate Chip Cookie Bar recipe. Instead of semi-sweet chocolate chips, these have white chocolate chips and a generous helping of bright and happy funfetti sprinkles.

This is family-friendly baking recipe that's fun to make with the kids. In fact, it's simple enough for the kids to bake on their own, depending on your kids' ages!

  • Simple: This is an simple recipe with quite simple detailed instructions that almost anyone can make. It's a great recipe for beginning bakers!
  • Simple ingredients: you can find all of these ingredients at your local grocery store.
  • Tasty: with lots of sprinkles, a sweet sugar cookie mix base, and white chocolate chips, this dessert has the best flavor. No one can resist!

🥣 What you need to make funfetti cookie bars

You only need a few basic pantry ingredients plus some regular baking equipment to make these tasty cookie bars.

EQUIPMENT:

  • 9″x13″ baking dish – We find that a glass baking dish works best for this recipe. The baking times in this recipe are for baking with a glass baking dish. Glass heats faster than metal, so if you use a metal baking pan instead, you might need to add more time and/or increase the oven temperature.
  • parchment paper – when making cookie bars, We always lightly grease the baking dish with butter, then line fully with parchment paper. This means the parchment paper doesn't simply line the bottom – it goes up the sides as well. This makes it much easier to lift out the baked cookie bars and transfer them to a cooling rack to cool before slicing.

🍫 We ngredient notes

  • flour – use all-purpose flour for this baking recipe.
  • kosher salt – not all salt is created equal. We prefer to use Diamond Crystals kosher salt. If you use Morton's kosher salt, use simply a little less than the recipe calls for; if you are using table salt, use a little more. Here's a general guideline: 1 part table salt = 1½ parts Morton kosher salt = 2 parts Diamond Crystal kosher salt. If you'd like to learn more about the differences between salts, this link takes you to an information article.
  • baking soda
  • unsalted butter – We use Tillamook unsalted butter in most of the baking recipes. If We am making a dairy-free baking recipe, We use Earth Balance Dairy-Free Butter Sticks.
  • light brown sugar – make sure you pack the light brown sugar into your measuring cup
  • granulated sugar – We use both sugars to balance the flavors in the bars
  • eggs – this recipe, like most of the baking recipes, works best with room temperature cage free brown eggs. Take the eggs out of the refrigerator and place them on your kitchen counter 1 to 2 hours before you are ready to start making this recipe.
  • vanilla extract – pure vanilla extract has amazing flavor compared to imitation vanilla extract. It is, however, considerably more expensive. If you like to bake, then We highly recommend investing in pure vanilla extract. It makes a difference in how your baked goods taste! But you can, of course, use imitation vanilla extract if that's what you have in your pantry. You can also sub in almond extract.
  • semi-sweet white chocolate chips – We have found that most grocery store brands of white chocolate chips work
  • funfetti colored sprinkles – you can use any fun rainbow sprinkles (or rainbow jimmies) you have on hand.
Shop King Arthur Baking for all your baking needs!

Exact measurements of ingredients and instructions are in the printable recipe card toward the bottom of this post. Here are some helpful tips to guide you as you make this recipe.

✅ Step-by-step guide: how to make funfetti cookie bars

Baking these funfetti bars is super simple – and fun!

  • Start by melting the butter in a microwave safe bowl and allow to cool for at least 10 minutes before using in the recipe. If you haven't taken the eggs out of the fridge yet, do so now and let them sit on your counter to come up to room temperature.
  • Preheat the oven to 325°F.
  • Prepare a 9″ x 13″ baking pan by lining the bottom and sides with parchment paper. This will allow you to lift the bars out of the pan easily.
  • In a medium bowl, whisk together the flour, salt, and baking soda; set aside.
  • In a different large bowl, whisk together the melted butter (make sure it's cooled!), brown sugar, and granulated sugar until the sugars and butter are well-combined. Then add the egg, egg yolk, and vanilla, and mix well.
  • Using a rubber spatula, gently fold the dry ingredients into the wet ingredients, simply until blended. Next, gently fold in the white chocolate chips and sprinkles. Be careful not over-mix the batter.

    The dough may be slightly crumbly, so simply use your hands to incorporate any loose dry crumbs into the dough. Then use a spatula to bring the dough into the prepared pan covered with parchment paper. Even out the dough and smooth the top with a spatula or even with your hands.

Baking the cookie bars

Bake the funfetti bars at 325°F for 20-25 minutes.

You'll know these yummy baked goods are done when the top is a light golden brown and the edges will start to slightly pull away from the sides. Remove them from the oven and let them cool to room temperature on a wire rack before slicing into bars into 2″ squares with either a knife or a pastry cutter.

🎉 Serving ideas

Doesn't this look like a pan full of JOY?! These funfetti cookie bars are happiness in your hands. Sweet, chewy, tasty — simply the perfect dessert!

These bright and colorful gooey bars filled with fun rainbow sprinkles are perfect to serve at any special occasion:

  • birthday parties
  • a baby shower
  • a bridal shower
  • class parties
  • as team sport snacks
  • road trip snacks

More dessert recipes

Want more colorful desserts like this? Try our Lucky Charms Cereal Bars or Lucky Charms Cookies. Or try any of these cookie bar or cookie recipes!

Did you make this recipe? Don't forget to leave a 5-Star 🌟🌟🌟🌟🌟 rating in the recipe card, and if you truly loved it, please leave a comment further down on the page. Thank you!

Funfetti Cookie Bars

By Marlynn Schotland Prep Time: 15 mins Cook Time: 20 mins Total Time: 35 mins Servings: 9 bars These festive treats are chewy and gooey, with sweet white chocolate and colorful sprinkles.

Ingredients

  • 2 cups + 2 tbsp all-purpose flour
  • 1/2 tsp kosher salt
  • 1/2 tsp baking soda
  • 8 tablespoons (1 stick) unsalted butter, melted and then cooled to room temperature
  • 1 cup packed light brown sugar
  • 1/2 cup granulated sugar
  • 1 large egg
  • 1 large egg yolk
  • 2 tsp vanilla extract
  • 1 cup semi-sweet white chocolate chips
  • 1 tablespoon funfetti colored sprinkles (plus more if desired)

Instructions

  • Melt the butter in a microwave safe bowl and allow to cool for 10-20 minutes before using in the recipe.
  • Preheat oven to 325°F. Prepare a 9" x 13" baking pan by lining the bottom and sides with parchment paper. This will allow you to lift the bars out of the pan easily.
  • In a medium bowl, whisk together flour, salt, and baking soda; set aside.
  • In a large bowl, whisk together melted butter, brown sugar, and granulated sugar until combined. Add egg, egg yolk, and vanilla, and mix well. Using a rubber spatula, gently fold dry ingredients into the wet ingredients. Add white chocolate chips and sprinkles, and fold into the mixture until simply combined. Be careful not over-mix the batter.
  • Dough may be slightly crumbly; simply use your hands to incorporate any loose crumbs into the dough. Use a spatula to bring the dough into the prepared pan covered with parchment paper, then even out the dough and smooth the top with a spatula or even with your hands.
  • Bake at 325°F for 20-25 minutes. You'll know it's done when the top is a light golden brown and the edges will start to slightly pull away from the sides. Remove from oven and let cool to room temperature on a wire rack before slicing into bars into 2" squares with either a knife or a pastry cutter.

Notes

Makes approximately 15-18 thicker funfetti cookie bars or 21-24 thinner cookie bars. Pan size:
  • Use a 9″ x 13″ glass baking dish for thinner cookie bars.
  • Use an 8″ x 8″ (or 9″ x 9″) baking dish for thicker cookie bars.
Lining the pan options: You can use foil instead of parchment paper to line the pan, simply be sure to grease the foil with cooking/baking spray. The preference is parchment paper; We find it makes removing and slicing through the bars, and clean up, so much easier.  Room temp eggs: When baking, make sure your eggs are at room temperature. We usually take them out of the fridge about an hour before We start gathering the ingredients, or right at the beginning and let them sit on the countertop for a few minutes before incorporating them. Read this article for more on why you should use room temperature eggs when baking. For chewier bars: remove from the oven before the bars are slightly firm to the touch, around 20-23 minutes.  For crunchier bars: remove closer to the 25 minute mark.  You can substitute dark chocolate or milk chocolate chips or chunks, if you prefer. DAIRY-FREE OPTIONS: make this dairy-free by using the fave vegan butter and dairy-free chocolate chips.  

Nutrition

Calories: 311 kcal, Carbohydrates: 45 g, Protein: 1 g, Fat: 15 g, Saturated Fat: 9 g, Polyunsaturated Fat: 1 g, Monounsaturated Fat: 3 g, Trans Fat: 0.4 g, Cholesterol: 70 mg, Sodium: 211 mg, Potassium: 46 mg, Sugar: 43 g, Vitamin A: 366 IU, Calcium: 29 mg, Iron: 0.3 mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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