Deliciously soft and munchy.
Sift together the flour, salt, soda and baking powder. Cream the butter or margarine with the sugar until light and fluffy. Add the egg and beat thoroughly. Blend in the melted chocolate. Add the dry ingredients alternately with the sour cream, beating until smooth after each addition. Stir in the vanilla and nuts.
Drop by teaspoons on to a greased cookie sheet. Bake at 375 degrees F about 10 to 12 minutes.