Drop Everything and Make These Funfetti Blondies

By Nicole Perry

Updated on 2/24/2016 at 2:00 PM

POPSUGAR Photography | Nicole Perry
POPSUGAR Photography | Nicole Perry

Take the butter-rich, chewy texture of blondies and marry it with cake-batter flavor and a near-absurd amount of rainbow sprinkles, and you have these ridiculously delicious bars. Seriously, drop everything and make these tonight — they're expletive-inducing good.

POPSUGAR Photography | Nicole Perry
POPSUGAR Photography | Nicole Perry

Don't be tempted to skip the butter extract, it's (part of) what gives these bar cookies their unmistakable funfetti-cake flavor; they taste like the box mix in the best way possible. Many large supermarkets sell the butter extract — the McCormick version is great and most widely available — or order it online.

POPSUGAR Photography | Nicole Perry

Cake Batter Blondie Bars

Yield24 bars

Adapted from Dessert Mashups: Tasty Two-in-One Treats Including Sconuts, S'morescake, Chocolate Chip Cookie Pie and Many More by Dorothy Kern

INGREDIENTS

    • For the blondies:
    • 1 teaspoon baking powder
    • 1 teaspoon kosher salt
    • 2 cups (10 ounces) all-purpose flour
    • 1/2 cup (3 1/2 ounces) granulated sugar
    • 1 cup (8 ounces) packed brown sugar
    • 1 stick (4 ounces) unsalted butter, at room temperature
    • 2 large eggs
    • 1 teaspoon vanilla extract
    • 1 teaspoon butter extract
    • 1/2 cup rainbow sprinkles
    • For the frosting:
    • 1 stick (4 ounces) unsalted butter, at room temperature
    • 1/4 teaspoon kosher salt
    • 1 1/2 cups (6 ounces) powdered sugar, sifted
    • 1 teaspoon vanilla extract
    • 1 teaspoon whole milk, optional
    • Sprinkles, for garnish

    INSTRUCTIONS

    1. Make the blondies: Preheat the oven to 350°F. Spray a 9-by-13-inch Pyrex or ceramic dish with nonstick cooking spray.

    2. In a medium bowl, whisk together the baking powder, salt, and flour.

    3. In the bowl of a stand mixer fitted with the paddle attachment, cream together the granulated sugar, brown sugar, and butter. Add the eggs, vanilla, and butter extract, and beat until combined. Add the dry ingredients and mix until combined. Stir in the sprinkles.

    4. Press the dough into the prepared pan. (The dough will be sticky; spray your hands with cooking spray to keep it from sticking to you.) Bake for 22 to 24 minutes. They will be slightly golden but still have the slightest jiggle in the center. They'll set as they cool. Cool completely before frosting.

    5. Make the frosting: Using an electric hand mixer or stand mixer fitted with the paddle attachment, beat the butter and salt until smooth. Slowly add in the powdered sugar, and mix until smooth. Add the vanilla extract, and the milk if the frosting looks a little dry, and mix until smooth.

    6. Frost the bars using an offset spatula. Top with sprinkles, and cut into bars. Store covered at room temperature or in the refrigerator. Best eaten at room temperature within 5 days.