Congressman J.C. Watts Jr.'s Oklahoma Mud

Source: The Honorable J.C. Watts Jr., United States Congressman, Oklahoma

2 cups granulated sugar
1 cup (2 sticks) margarine, melted
4 eggs
1 teaspoon vanilla extract
1 1/2 cups flour
1 1/2 cups coconut
1 1/2 cups chopped nuts - (pecans are great!)
3 tablespoons cocoa
1 jar Marshmallow Cr