the recipe is credited to Ms. Rose Datko from St. Paul, Minnesota.
Preheat oven to 350F (175 °C). Lightly grease several baking sheets. In a large bowl, cream butter and sugars until light and fluffy. Beat in eggs and vanilla. In a medium-size bowl, combine flour, salt and baking soda; blend into creamed mixture. Stir in oats, raisins, walnuts and baking chips, mixing well. Drop by level tablespoonfuls 2 inches apart onto greased baking sheets. Bake in preheated oven 13 to 15 minutes or just until golden brown. Do not overbake. Cool cookies on baking sheets 1 minute, then remove from baking sheets to wire racks to cool. Makes 78 cookies.