Change the default template strings in Cookbook for WordPress

cookbook-template-strings.php

<?php

add_filter( 'cookbook_strings', 'prefix_custom_strings' );
/**
 * Modify the default template strings in Cookbook.
 *
 * @since  1.0.0
 * @param  array $strings The default template strings.
 * @return array
 */
function prefix_custom_strings( $strings ) {
	$strings['prep_time_title']     = __( 'Prep Time', 'theme-textdomain' );
	$strings['cook_time_title']     = __( 'Cook Time', 'theme-textdomain' );
	$strings['inactive_time_title'] = __( 'Inactive Time', 'theme-textdomain' );
	$strings['total_time_title']    = __( 'Total Time', 'theme-textdomain' );

	return $strings;
}

add_filter( 'cookbook_time_labels', 'prefix_custom_time_labels', 10, 2 );
/**
 * Modify the default time labels in Cookbook.
 *
 * @since  1.0.0
 * @param  array $labels The default time labels.
 * @param  array $time The time to use when formatting the label.
 * @return array
 */
function prefix_custom_time_labels( $labels, $time ) {
	$labels['hours']   = _n( 'hour', 'hour', $time['hours'], 'theme-textdomain' );
	$labels['minutes'] = _n( 'minute', 'minutes', $time['minutes'], 'theme-textdomain' );
	$labels['seconds'] = _n( 'second', 'seconds', $time['seconds'], 'theme-textdomain' );

	return $labels;
}