Name: Blondies Recipe
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Yield: 16
Ingredients: 12 tablespoons unsalted butter (melted); 1 1/2 cups dark brown sugar (packed); 2 teaspoons vanilla extract; 2 eggs; 1 1/2 cups all purpose flour; 1 teaspoon baking powder; 1/2 teaspoon salt; 2 cups semisweet chocolate chunks (divided use); cooking spray