Double Chocolate-Pistachio Brownies | Paula Deen

Ingredients

• 1½ cups Butter, softened
• 1½ cups firmly packed brown sugar
• 1 cup granulated sugar
• 1 tablespoon vanilla extract
• 4 large eggs
• 1¾ cups All-purpose flour
• 1 cup unsweetened cocoa powder
• ½ teaspoon baking powder
• ½ teaspoon baking soda
• ¼ teaspoon salt
• 1 cup white chocolate chips
• 1 cup dark chocolate chips
• 1 cup chopped pistachios