AMERICA'S TEST KITCHEN BLONDIES OR CONGO BARS

Steps:

• Adjust an oven rack to the middle position and heat the oven to 350 degrees.
• Line a 13x9 inch baking pan with a foil sling and grease the foil.
• Whisk the flour, baking powder, and salt together in a medium bowl.
• In a large bowl, whisk the butter and sugar together.
• Whisk in the eggs and vanilla until combined.
• Stir in the flour mixture until just incorporated.
• Stir in the chips and nuts.
• Scrape the batter into the prepared pan and smooth the top.
• Bake the blondies until a toothpick inserted into the center comes out with just a few moist crumbs attached, 22 to 25 minutes, rotating the pan halfway through baking.
• Let the blondies cool completely in the pan, set on a wire rack, about 2 hours.
• Remove the blondies from the pan using the foil, cut into squares, and serve.