Mississippi mud pie is a chocolate-based dessert pie that is likely to have originated in the US state of Mississippi. The treat contains a gooey chocolate filling on top of a crumbly chocolate crust. The pie is usually served with ice cream. While Mississippi mud pie was originally associated with Southern United States cuisine, the dish has gained somewhat of an international reputation, owing in large part to the sheer amount of chocolate in each serving.
The name "Mississippi mud pie" comes from the dense cake which resembles the banks of the Mississippi River. It is believed that this dish was created by home cooks after World War II because it was made of simple ingredients that could be found at any supermarket and did not require any special cooking tools.