This step can be done from the WordPress backend with a plugin like WP Editor but is probably easier through FTP or a File Manager.
To start, you’ll want to create this folder structure in your child theme: /wprm-templates/recipe/
This is where you can put any custom recipe templates.
While starting from scratch is possible, it will be easier to copy one of the existing template folders into the above directory. Our templates can be found in the /templates/recipe/ folder of the plugin.
Copy the /wp-content/plugins/wp-recipe-maker/templates/recipe/simple/ folder and put it in your child theme so you end up with /wp-content/themes/your-child-theme/wprm-templates/recipe/simple/
Any changes you make to the recipe template files in this folder will now be reflected on your website.