private function submenu_page() {
		add_action(
			'admin_menu',
			function() {
				// Add submenu
				add_submenu_page(
					'edit.php?post_type=uo-recipe',
					/* translators: 1. Trademarked term */
					sprintf( esc_attr__( '%1$s settings', 'uncanny-automator' ), 'Uncanny Automator' ),
					esc_attr__( 'Settings', 'uncanny-automator' ),
					'manage_options',
					'uncanny-automator-config',
					array( $this, 'submenu_page_output' )
				);
			}
		);
	}