Cream butter and sugar. Sift dry ingredients together. Beat in egg, oats and dry ingredients. Stir in raisins, walnuts and vanilla. Drop by the teaspoonful onto a well-buttered or parchment lined baking sheet.
Bake for 10-12 minutes at 350°F.
Cooks Note: Add 1/4 tsp. of allspice for a spicier cookie.