Cream together Crisco and the two sugars. Beat in the eggs. Add vanilla and mix well. Stir in the flour, soda and salt, well. Add chocolate chips and walnuts until well blended. Drop by teaspoonfuls onto a greased baking sheet. Bake at 375 degrees for 10 to 12 minutes. Bake until they look just a bit underdone and then let sit on the cookie sheet for a minute or two for a chewier cookie.