outrageous brownies

INGREDIENTS

• Somehow, the prospect of using a pound of butter, even in something that creates a commensurate quantity of product, was too much for me, so I halved it. The recipe was no one-bowl cinch, but not particularly difficult minus the part where I tapped out th
• 1 pound unsalted butter
• 28 ounces semi-sweet chocolate chips, divided
• 6 ounces unsweetened chocolate
• 6 extra large eggs
• 3 tablespoons instant coffee granules
• 2 tablespoons pure vanilla extract
• 2 1/4 cups sugar
• 1 1/4 cups all-purpose flour, divided
• 1 tablespoon baking powder
• 1 teaspoon salt
• 3 cups chopped walnuts