In a large bowl, cream butter and sugars until light and fluffy, 5-7 minutes. Beat in the egg, milk and lemon juice. Combine the flour, ground walnuts, baking powder, salt and baking soda; gradually add to the creamed mixture and mix well. Stir in the cranberries and chopped walnuts. , Drop by heaping tablespoonfuls 2 in. apart onto lightly greased baking sheets. Bake at 350° for 16-18 minutes or until golden brown. Remove to wire racks to cool.