I’m not an expert and haven’t tried this, so will need validating first, but I think you can paste this in the code injection of the specific page. replace with the relevant schema
<script type="application/ld+json">
{
"@context": "https://schema.org/",
"@type": "Recipe",
"name": "{{recipe_name}}",
"image": [ "{{recipe_image}}" ],
"author": {
"@type": "Person",
"name": "{{recipe_author}}"
}
}
</script>