Allow two sticks (1/2 pound) butter to reach room temperature and soften.
Melt two sticks (1/2 pound) butter.
In a small bowl, combine flour and melted butter. Mix well. You may wish to return this to the microwave so that this mixture is pourable.
Pour melted butter mixture into the cake mix and add remaining softened butter. Mix until all ingredients have been incorporated and this is smooth. If the dough is stiff knead on a cutting board until it has softened.
Shape as desired. You can roll out the dough and cut out cookies or use a cookie press.