I absolutely love making blondies because they are the perfect combination of sweetness and chewy texture.
Ingredients
1 ½cups(213g)all-purpose flour
1teaspoon(4g)baking powder
½teaspoon(3g)table salt
12tablespoons(170g)unsalted butter, cut into slices
1 ½cups(298g)light brown sugar, packed
2largeeggs
1tablespoon(15ml)vanilla extract
½cup(85g)white chocolate chips
½cup(85g)semi-sweet chocolate chips
1cup(117g)chopped walnuts, optional
Instructions
Heat the Oven - Set the oven rack to the middle position. Heat the oven to 350ºF (177ºC). Line a 13x9 metal cake pan with foil or parchment paper. Leave some overhang on the sides to make the blondie easy to lift out. Lightly grease the pan with nonstick cooking spray.
Brown the butter - Heat the butter slices in a 10-inch skillet over medium heat, swirling to melt evenly. Stir and cook, scraping the bottom of the pan with a spatula, until butter is golden brown and nutty in aroma, 2 to 3 minutes. Immediately transfer to a large bowl, scraping all of the bits from the pan. Cool to below 144ºF (62ºC).
Mix the Dry Ingredients - In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
Mix the Sugar and Eggs - To the cooled browned butter, add the brown sugar. Whisk until combined. Add the eggs and vanilla. Whisk until smooth and shiny.
Make the Dough - Add the flour mixture to the butter mixture. Fold together until no flour streaks remain. Do not over mix!
Add the Mix-Ins' - Add the walnuts, white chocolate chips, and semi-sweet chocolate chips. Stir until combined in the dough.
Bake - Evenly spread the dough in the prepared baking pan. Bake in the center of the oven until the surface is lightly golden brown, and the edges are set, 20 to 22 minutes.
Cool then Slice - Transfer the blondie to a wire rack to cool in the pan until it's room temperature. This can take about 1 hour. If removed when hot, it will break in the middle. To serve warm, slice in the pan and remove the pieces with a spatula.Carefully use the foil or paper overhang to lift the blondie out of a pan. Place on a cutting board and slice into 2-inch-sized pieces.
Notes
Using Melted Butter: The butter can be melted and not browned. It will yield a lighter color and a stronger vanilla flavor instead of butterscotch.
Storing: Store in an airtight container for up to 7 days. Wrap the blondies, place them in a freezer bag, and freeze them for up to 3 months.