JS Morisset

Includes a 5 Star Rating in Schema markup:
<ol>
<li>If the Schema markup does not have an ‘aggregateRating’ property.</li>
<li>If Google allows an ‘aggregateRating’ property for that Schema type.</li>
</ol>
Google allows an ‘aggregateRating’ property for these Schema types and their sub-types:
<ul>
<li>Book</li>
<li>Course</li>
<li>Event</li>
<li>HowTo (includes Recipe)</li>
<li>LocalBusiness</li>
<li>Movie</li>
<li>Product</li>
<li>SoftwareApplication</li>
</ul>
If the Schema type in the Document SSO metabox is not one of these types (or one of their sub-types), then a 5 star rating cannot be added, as doing so would trigger an error in the Google search console. <a href="https://developers.google.com/search/docs/advanced/structured-data/review-snippet" rel="nofollow ugc">See Google’s Review snippet documentation for additional information.</a>

<h3>WPSSO Add Five Stars is a Fallback Solution</h3>
The Google’s Review Snippet technical guidelines reminds us to:
<blockquote>
<a href="https://developers.google.com/search/docs/advanced/structured-data/review-snippet#technical-guidelines" rel="nofollow ugc">Make sure the reviews and ratings you mark up are readily available to users from the marked-up page. It must be immediately obvious to users that the page has review content.</a>
</blockquote>
The WPSSO Add Five Stars add-on includes a 5 star rating if the document Schema markup does not already have an ‘aggregateRating’ property. It is always preferable to include actual ratings and reviews from your visitors and/or customers in the webpage. The WPSSO Add Five Stars add-on can be used in combination with any of the following third-party plugins and service APIs, or the <a href="https://wordpress.org/plugins/wpsso-ratings-and-reviews/" rel="ugc">WPSSO Ratings and Reviews</a> add-on.
Suggested Rating and Review Plugins and Services:
The <a href="https://wordpress.org/plugins/wpsso/" rel="ugc">WPSSO Core plugin</a> supports a selection of plugins that provide ratings and reviews:
<ul>
<li>WP-PostRatings</li>
<li>WP Product Review</li>
<li>Yotpo Social Reviews for WooCommerce</li>
<li>WooCommerce</li>
<li><a href="https://wordpress.org/plugins/wpsso-ratings-and-reviews/" rel="ugc">WPSSO Ratings and Reviews</a></li>
</ul>
The <a href="https://wpsso.com/" rel="nofollow ugc">WPSSO Core Premium plugin</a> also supports a selection of remote service APIs that provide ratings and reviews:
<ul>
<li>Judge.me (Ratings and Reviews)</li>
<li>Shopper Approved (Ratings and Reviews)</li>
<li>Stamped.io (Ratings and Reviews)</li>
</ul>
<h3>WPSSO Core Required</h3>
WPSSO Add Five Stars is an add-on for the <a href="https://wordpress.org/plugins/wpsso/" rel="ugc">WPSSO Core plugin</a>, which creates extensive and complete structured data to present your content at its best for social sites and search results – no matter how URLs are shared, reshared, messaged, posted, embedded, or crawled.

WPSSO Add Five Stars for Google Rich Snippets

Add a 5 star rating and review from the site organization if the Schema markup does not already have an 'aggregateRating' property.

BooSpot

What makes Boo Recipes so impressive is how easy it is to add new recipes, and it creates schema markups automatically.
This plugin uses the Schema.org format that was jointly developed by Google, and other famous search engines, and is the most widely recognized. You can simply add multiple recipes from scratch, no coding needed. It is just as easy as copy, paste, select appropriate meta and publish.
If you are entering a new recipe from scratch, all you need to do is separate the lines of ingredients in ingredients farm and instructions in instructions farm. The plugin will add schema tags to each item itself.
This plugin makes it simple what Google and other search engines need to understand your recipes better. This is how you get your recipe thumbnails in Google search page. 
Whatever layout you select recipes added using Boo Recipes are correctly formatted on the front end so that search engines can pull in additional information.
<a href="https://boorecipes.com/recipe-archive/" rel="nofollow ugc">Archive Page Demo</a> | <a href="https://boorecipes.com/single-recipe/" rel="nofollow ugc">Single Recipe Demo</a> | <a href="https://boorecipes.com/documentation/" rel="nofollow ugc">Documentation</a> 
| <a href="https://boorecipes.com/" rel="nofollow ugc">Features</a>
Features include:
<ul>
<li>Schema.org format for recipe</li>
<li>Full Customization (<a href="https://boorecipes.com/single-recipe/admin-view/" rel="nofollow ugc">Recipe Edit View </a> , <a href="https://boorecipes.com/single-recipe/settings-view/" rel="nofollow ugc">Options Page</a>)</li>
<li><a href="https://boorecipes.com/recipe-archive/recipes-with-specific-ids/" rel="nofollow ugc">Shortcode Supported</a></li>
<li>Show recipes index anywhere with full customization support (<a href="https://boorecipes.com/documentation/#recipe-index-recipes_browse" rel="nofollow ugc">Guide</a>)</li>
<li>3 recipe index styles (<a href="https://boorecipes.com/recipe-archive/grid-view/" rel="nofollow ugc">Grid</a>, <a href="https://boorecipes.com/recipe-archive/masonry-grid-view/" rel="nofollow ugc">Masonry</a> and <a href="https://boorecipes.com/recipe-archive/list-view/" rel="nofollow ugc">List</a>)</li>
<li><a href="https://boorecipes.com/recipe-archive/masonry-grid-view/" rel="nofollow ugc">Masonry View</a> (Optional)</li>
<li>Control visibility of elements of recipe</li>
<li>Translation Ready (.pot file included)</li>
<li>Insertion points in single recipe (using action hooks)</li>
<li>Social Media Share buttons</li>
<li>Recipe Categories Taxonomy</li>
<li>Recipe Tags Taxonomy</li>
<li>Skill Level Taxonomy</li>
<li>2 single recipe styles: <a href="https://boorecipes.com/single-recipe/template-style-1/" rel="nofollow ugc">style1</a> and <a href="https://boorecipes.com/single-recipe/template-style-2/" rel="nofollow ugc">style2</a>*</li>
<li>2 more recipe index styles: <a href="https://boorecipes.com/recipe-archive/modern-view/" rel="nofollow ugc">modern</a> and <a href="https://boorecipes.com/recipe-archive/overlay-view/" rel="nofollow ugc">overlay</a> *</li>
<li>Change Labels to suit your needs *</li>
<li>Recipe Cuisines Taxonomy *</li>
<li>Cooking Method Taxonomy *</li>
<li><a href="https://boorecipes.com/recipe/greek-olive-pesto-and-fried-zucchini-grilled-pitas/" rel="nofollow ugc">Recipes with image sliders</a> *</li>
<li><a href="https://boorecipes.com/recipe/tandoori-tempeh/" rel="nofollow ugc">Video Recipes</a> *</li>
<li><a href="https://boorecipes.com/hello-world/" rel="nofollow ugc">Show/embed recipes in posts or pages</a> *</li>
<li>Widgets for Recipes
<ul>
<li><a href="https://boorecipes.com/features/search-form-widget/" rel="nofollow ugc">Recipe Search Form</a></li>
<li><a href="https://boorecipes.com/features/recipes-list-widget/" rel="nofollow ugc">Recipes List</a> with option to order by date, id, comments</li>
<li><a href="https://boorecipes.com/features/recipe-taxonomy-widget/" rel="nofollow ugc">Recipe Categories List</a></li>
<li>Recipe Cuisine List*</li>
</ul>
</li>
<li>Full Customization Settings</li>
</ul>
*Available only in Premium Version
<h3>Documentation</h3>
Extensive Documentation is available at<a href="http://boorecipes.com/documentation/" rel="nofollow ugc">http://boorecipes.com/documentation/</a> 
Documentation guides you about:
<ul>
<li>Installation</li>
<li>Updating the plugin</li>
<li>Uninstalling plugin with or without removing data</li>
<li><a href="https://boorecipes.com/documentation/#creating-a-new-recipe" rel="nofollow ugc">Adding a new recipe</a></li>
<li>Editing an existing recipe</li>
<li><a href="https://boorecipes.com/documentation/#index-archive-page" rel="nofollow ugc">Index / Archive page for recipes</a></li>
<li>Custom Taxonomies available
<ul>
<li>Recipe Category,</li>
<li>Skill Level,</li>
<li>Recipe Tags (Usage)</li>
<li>Recipe Cuisine*</li>
<li>Cooking Method*</li>
<li>Recipe Tools*</li>
</ul>
</li>
<li>Recipes with image sliders*</li>
<li>Video Recipes*</li>
</ul>
*Available only in Premium Version

Boo Recipes

Easily add Recipes in user friendly way that generates SEO optimized recipes using Schema.org microdata.

WPSSO Add Five Stars for Google Rich Snippets vs Boo Recipes