1.Brownie came from a chef at Chicago's Palmer House Hotel during the late 19th century. It all started when Bertha Palmer wanted to requested a special dessert for ladies attending the Chicago 1893 World Fair.
2.One of the most popular brownies is called Blondie, which is made with brown sugar and no chocolate.
3. nuts, frosting, whipped cream, chocolate chips
4.put the electric beater in the mixture slowly and then put the power slowly from minimum power to high power.
5. a bit of melted white chocolate on the top of the chocolate brownies when it is done.