Cream of Spinach Soup

Melt three tablespoons of the butter in a saucepan and cook the onion in it until it is translucent. Do not brown.

Pick over the spinach and wash it well; tear off the tough stems and shred the leaves with a knife. Dry on paper towels. Add the spinach to the saucepan. Cook over low heat, stirring with a two-pronged fork, just until the leaves are wilte