Preheat the oven to 325 degrees F (165 degrees C).
Cream butter
brown sugar
and white sugar in a large bowl with an electric mixer until fluffy. Beat in one egg at a time
then stir in vanilla.
Combine flour
cinnamon
salt
and baking soda in a separate bowl; stir into the creamed mixture. Mix in oats and walnuts until just blended. Drop teaspoonfuls of dough 2 inches apart onto ungreased cookie sheets.
Bake in the preheated oven until edges are golden
about 12 minutes. Transfer to a wire rack to cool.
