Brown-Butter Toffee Blondies - SippitySup

Ingredients

• 1 ¼ cup unsalted butter (plus more for pans)
• 1 ¼ cup all-purpose flour (plus more for pans)
• 1 ½ teaspoon baking powder
• 1 ½ teaspoon kosher salt
• 2 cups packed light-brown sugar
• ½ cup granulated sugar
• 3 large eggs
• 2 teaspoons pure vanilla extract
• 4 ounces chopped walnuts
• 6 ounces chopped chocolate covered toffee bars (such as Heath)