These Sheet Pan Funfetti Cookie Bars are a celebration in every bite, combining soft, chewy textures with bursts of colorful sprinkles. Perfect for any occasion, they bring a nostalgic sweetness that’s impossible to resist. Ready in just 35 minutes, they’re a quick, fuss-free treat that’s as fun to make as it is to eat.
With a golden, buttery base and a hint of vanilla, these bars are delightfully rich yet light. The sprinkles add a playful crunch, while the edges bake to a perfect crisp. Whether you’re sharing with friends or sneaking a slice for yourself, these bars are guaranteed to brighten your day with their irresistible charm.
Ingredients for Funfetti Cookie Bars
- 1 cup butter, softened to room temperature (unsalted preferred, but salted works too)
- 1½ cups brown sugar (light or dark, packed)
- 2 large eggs, at room temperature
- 1 Tablespoon vanilla extract (use pure vanilla for best flavor)
- 2 teaspoons baking powder
- 1 teaspoon salt
- 3 cups all-purpose flour (spooned and leveled for accuracy)
- 2 cups white chocolate chips (substitute with milk or dark chocolate chips if preferred)
- 1 cup sprinkles (jimmies work best for vibrant color)
Step-by-Step Instructions
- Preheat your oven to 350°F (175°C) and lightly spray a half baking sheet (18 x 13 inches) with nonstick cooking spray.
- In a large mixing bowl, cream together the softened butter and brown sugar until light and fluffy, about 2-3 minutes.
- Mix in the eggs and vanilla extract until fully combined.
- Add the baking powder, salt, and flour. Mix until just combined, being careful not to overmix.
- Gently fold in the white chocolate chips and sprinkles, reserving a small handful of each for topping.
- Spread the dough evenly onto the prepared baking sheet. Sprinkle the reserved chocolate chips and sprinkles on top.
- Bake for 20-25 minutes, or until the edges are golden brown and the center is set. A toothpick inserted into the center should come out clean or with a few crumbs.
- Allow the cookie bars to cool completely in the pan before cutting into squares. Enjoy!
Fun Toppings and Serving Ideas
Take your Funfetti Cookie Bars to the next level by drizzling them with a simple glaze made from 1 cup powdered sugar, 2-3 tablespoons milk, and a splash of vanilla. For a festive touch, add extra sprinkles on top! Serve them warm with a scoop of vanilla ice cream for a delightful dessert or pair with a glass of cold milk for a sweet snack.
How to Store and Keep Them Fresh
Store your cookie bars in an airtight container at room temperature for up to 3 days. For longer storage, wrap them tightly in plastic wrap and freeze for up to 2 months. To reheat, pop them in the microwave for 10-15 seconds or warm them in a 300°F oven for 5 minutes for that fresh-from-the-oven taste.
Easy Recipe Variations to Try
Switch things up by swapping the white chocolate chips for dark chocolate chips or milk chocolate chips. You can also add a teaspoon of almond extract for a nutty twist. For a funfetti cake-like version, reduce the flour to 2½ cups and add ½ cup of sour cream to the dough for extra moisture.
Time-Saving Tips for Busy Bakers
To save time, use a stand mixer to cream the butter and sugar, then mix in the remaining ingredients. If you’re short on time, skip the sprinkles on top—they’ll still taste amazing! For even faster prep, measure out your ingredients the night before and store them in separate containers.
Common Questions Answered
Can I use a smaller pan? Yes, but adjust the baking time. A 9×13-inch pan will require about 30-35 minutes. Can I use margarine instead of butter? Butter is best for flavor and texture, but margarine can work in a pinch. Just avoid spreads with high water content. Why are my bars dry? Overbaking or too much flour can cause dryness—measure flour carefully and check for doneness at the 20-minute mark.
Sheet Pan Funfetti Cookie Bars Recipe
Ingredients
- 1 cup butter, softened to room temperature
- 1½ cups brown sugar
- 2 large eggs
- 1 Tablespoon vanilla
- 2 teaspoons baking powder
- 1 teaspoon salt
- 3 cups flour
- 2 cups white chocolate chips
- 1 cup sprinkles
Instructions
- Preheat oven to 350 degrees F.
- In a large mixing bowl, cream together softened butter and brown sugar.
- Mix in eggs and vanilla.
- Add baking powder, salt and flour and mix until well combined.
- Fold in white chocolate chips and sprinkles, reserving some of them to sprinkle on top before baking.
- Spray a half baking sheet (18 x 13 inch) with nonstick cooking spray, spread dough out evenly and top with remaining sprinkles.
- Bake for 20-25 minutes, or until middle is set and edges are golden brown.
- Let cool and cut into squares.