New custom option to article [Recipe]

Hello,
Can you tell me where can I add a new option for the article? For the moment there is one for Review and Simple article. I want an option called recipe so that on AMP on Google data structured I get errors.
<article id="post-30124" class="post-30124 post type-post status-publish format-standard has-post-thumbnail hentry category-dinner category-ketogenic-recipes" itemscope itemtype="https://schema.org/Article">

in

<article id="post-30124" class="post-30124 post type-post status-publish format-standard has-post-thumbnail hentry category-dinner category-ketogenic-recipes" itemscope itemtype="https://schema.org/Recipe">

I’ve seen that this code exists in theme in Newspaper/includes/wp_booster/td_module_single_base.php. I tried to modifiy it but it didn’t work

function get_item_scope() {
//show the review meta only on single posts that are reviews, the rest have to be article (in article lists)
if ($this->is_review && is_single()) {
return 'itemscope itemtype="' . td_global::$http_or_https . '://schema.org/Review"';
} else {
return 'itemscope itemtype="' . td_global::$http_or_https . '://schema.org/Article"';
}
}

I would like to add this so I can select from the post

function get_item_scope() {
//show the review meta only on single posts that are recipe
if ($this->is_recipe && is_single()) {
return 'itemscope itemtype="' . td_global::$http_or_https . '://schema.org/Recipe"';
} else {
return 'itemscope itemtype="' . td_global::$http_or_https . '://schema.org/Article"';
}
}