Prepare the Brownies:
Preheat oven to 325 degrees F. Line a 9x13-inch pan with foil, with enought to hang over all four sides, butter the foil. In a medium glass bowl, melt the chocolate in the microwave in 30 second increments, stirring after each, until melted and smooth. set aside to cool slightly. In a large mixing bowl, Mix the butter and eggs and vanilla extract, scraping the bowl as needed. Mix in the melted chocolate until combined. Reduce the speed to low, add the flour and mix just until combined (dont over mix) spread the batter into the prepared pan. Bake 25 to 35 min or until a tooth pick inserted into the center comes out clean. Let cool completely.