Preheat oven to 375 degrees F (190 degrees C). In a mixing bowl, cream butter and sugars. Add pudding mix, eggs, vanilla and heavy cream. Combine flour and baking soda; add to creamed mixture and mix well. Fold in chocolate chips. Drop by teaspoonfuls onto ungreased baking sheets. Bake for 10 to 12 minutes or until lightly browned.