This is a recipe for crispy walnut cookies made with oil. Since it doesn't use butter, it has a light texture, and the chopped walnuts enhance the aroma. The dough is simple to make: just mix, roll out, cut out shapes, and bake. The trick is to chill the dough in the freezer to make it easier to cut out shapes. Delicious plain or dipped in chocolate, this baked good is perfect as a gift or for Valentine's Day, and is recommended even for beginners.