Recipes/app/Recipe.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Recipe extends Model
{
    use HasFactory;
    protected $fillable = ['name','maintainer','author','servings','date_entered','date_modified','instructions'];

    public function user()
    {
        return $this->belongsTo('App\User');
    }

    public function ingredients()
    {
        return $this->hasMany('App\RecipeIngredient');
    }
}