With the Recipe Roundup feature you can have ItemList metadata on any roundup posts, where you’re manually linking to recipes on your website. This ItemList metadata will then allow Google to display a link to that post as a recipe carousel.
It’s possible to automatically output this same metadata on any archive pages by enabling the “Automatic ItemList Metadata” setting on the WP Recipe Maker > Settings > Recipe Metadata page:
When you do that, the archive pages listing recipes (or posts including recipes, when the “search all post types” option is selected) will automatically have the correct ItemList metadata as well.