Since this plugin relies on Craft's built in relationships, you can continue to use relationships just as you always have.
<h1>Related Ingredients</h1>
{% set relatedIngredients = craft.entries.section('ingredients').relatedTo(entry).all() %}
{% for ingredient in relatedIngredients %}
{{ ingredient.title }}<br />
{% endfor %}
<h1>Related Recipes</h1>
{% set relatedRecipes = craft.entries.section('recipes').relatedTo(entry).all() %}
{% for recipe in relatedRecipes %}
{{ recipe.title }}<br />
{% endfor %}