Congo Squares | Command Cooking

Ingredients

• 2 cups all-purpose flour, plus more, to taste, for dusting the pan
• 2 teaspoons baking powder
• 1/2 teaspoon salt
• 2/3 cup unsalted butter, melted and warm
• 2 1/4 cups light brown sugar, packed
• 3 eggs, room temperature
• 2 teaspoons vanilla extract
• 2 cups semisweet chocolate chips
• 1 cup walnuts, toasted and chopped