Preheat oven to 400 degrees F.
In a standing mixer, mix all ingredients except for the chocolate on high speed until creamy and combined. Fold in the chopped chocolate. Fill a greased and floured cake pan and bake for 40 minutes. Cool in the pan on a wire rack.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.
Recipe courtesy of Ritz Carlton Hotel, Philadelphia, Pennsylvania