These chocolate chip pecan blondies are the chewiest, most fudgy blondie bars you will ever make. One bowl, simple ingredients, and a secret ingredient that changes everything.
Preheat the oven to 350F then line a square 8x8 inch baking pan with parchment paper and set aside. Make sure to leave some parchment overhang to make the pulling-out process a whole lot easier.
In a large mixing bowl, cream the butter and brown sugar together. Add the egg, vanilla extract, and Karo® Syrup to the butter mixture and mix again to combine. Make sure to scrape down the sides with a rubber spatula as you go.
1/2 cup butter, 3/4 cup brown sugar, 1 egg, 1/4 cup light corn syrup (Karo® Syrup), 1 teaspoon vanilla extract
Fold in the dry ingredients: all-purpose flour, cornstarch, baking powder, and salt. Mix until just combined, do not overmix.
Fold in the chopped pecan pieces and chocolate chips until mixed in evenly.
1/2 cup pecans, 1/3 cup chocolate chips
Bake in the preheated oven for 23-28 minutes or until they are golden brown and a wooden skewer inserted in the center comes out with a few crumbs (see notes). Allow the bars to cool down a little then transfer them to a wire rack to cool down fully before slicing into them and enjoy!
Notes
At 25 minutes, the center will look underbaked, and the toothpick will come out with moist crumbs. Pull them anyway. The residual heat in the pan finishes the center while it cools, and this is the single difference between chewy blondies and dry ones. A clean toothpick means you already went too far.