Instructions

• Preheat the oven to 350°. Have ready a greased, 8"x8" square baking dish lined with parchment paper, leaving a slight overhang to easily lift the brownies out once baked.
• Melt the butter in a microwave-safe pitcher or bowl, and set aside to cool.
• In a medium-sized mixing bowl, combine flour, cocoa powder, baking powder, and salt. Whisk and set aside.
• Add the eggs and the yolk to a large mixing bowl, and whisk. Add the sugar and vanilla, and a handheld mixer on medium speed (or a sturdy wooden spoon) to mix until well combined. Slowly stream in the melted butter, mixing all the while.
• Add the dry ingredients and with the mixer on low, mix until just combined. Add ½ cup of the chopped walnuts, and mix once more.
• Add the batter to baking dish, spread to the edges and smooth over the top. Bake for 26-28 minutes, or until cooked through. Remove from the oven, and allow to cool completely. Once the brownies have cooled, lift them out of the baking dish and transfer to a work surface.
• Melt the chocolate wafers according to package directions, and pour melted chocolate over the top of the brownies. Smooth over the top using an offset spatula or the back of a spoon. Sprinkle with remaining walnuts and set aside until completely set.
• Cut the brownies into squares, serve and enjoy.