Displaying the Recipe Collections feature

Go to Pages > Add New to create a regular page that you can add the feature to.

Adding Recipe Collections in the Gutenberg Block Editor

Click on the + icon and select the Recipe Collections block:

That's it! The Recipe Collections feature will get displayed in the same location as that block.

Adding the shortcode in the Classic Editor

In the classic editor you type in the [wprm-recipe-collections] shortcode where you want the feature to appear or use the WP Recipe Maker button to add the shortcode: