These_artichokes_from_Navarra_are_partially_cooked_before_the_leaves_are_removed_and_the_hearts_trimmed_by_hand._They_are_then_marinated_in_sunflower_oil,_white_wine_vinegar,_parsley_and_basil._The_marinated_artichokes_have_a_tender_texture_and_a_nutty_and_citrusy_flavour_mellowed_by_the_oil_and_the_herbs._Serve_in_a_cold_tapa_with_Ortiz_anchovy_fillets,_in_salads_or_quickly_roast_them_on_a_griddle.