Preheat the oven to 375 degrees F (190 degrees C). Grease cookie sheets.
In a medium bowl, cream butter to soften. Combine the flour, sugar and baking soda, stir into the softened butter. Drop by rounded spoonfuls onto the prepared cookie sheet. Press down sightly with a cold fork.
Bake for 8 to 10 minutes in the preheated oven. Allow cookies to cool on baking sheet for 5 minutes before removing to a wire rack to cool completely.
