Prepare the batter, including mixing of dry and wet ingredients, then combining the two. Spread half the batter along the bottom of a baking dish lined with parchment paper. Sprinkle with Reese's Pieces, then gently top with the remaining batter. Bake @ 350F for 30 mins. Remove from oven and let completely cool. Remove the brownies from the baking dish, then layer with vanilla icing, drizzle with chocolate sauce, and sprinkle with more Reese's Pieces. Slice and eat!
