<?php

namespace Drupalrecipe_searchForm;

use DrupalCoreFormFormStateInterface;
use DrupalCoreFormConfirmFormBase;
use DrupalCoreUrl;

/**
 * Class DeleteIngredient
 *
 * @package Drupalrecipe_searchForm
 */
class DeleteIngredient extends ConfirmFormBase{

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'delete_ingredient';
  }

  public $cid;

  public function getQuestion() {
    return t('Do you want to delete %cid?', array('%cid' => $this->cid));
  }

  public function getCancelUrl() {
    return new Url('recipe_search.recipes');
  }

  public function getDescription() {
    return t('Only do this if you are sure!');
  }
  /**
   * {@inheritdoc}
   */
  public function getConfirmText() {
    return t('Delete it!');
  }
  /**
   * {@inheritdoc}
   */
  public function getCancelText() {
    return t('Cancel');
  }

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state, $cid = NULL) {
    $this->pid = $cid;
    return parent::buildForm($form, $form_state);
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {

    $database = Drupal::database();
    $database->delete('ingredient_list')
      ->condition('pid', $this->pid)
      ->execute();

    $form_state->setRedirect('recipe_search.recipes');

  }

<?php

namespace Drupalrecipe_searchForm;

use DrupalCoreFormFormBase;
use DrupalCoreFormFormStateInterface;

/**
 * Class DeleteIngredient
 *
 * @package Drupalrecipe_searchForm
 */
class DeleteIngredient extends FormBase{

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'delete_ingredient';
  }

  public $cid;

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state, $cid = NULL) {
    $this->pid = $cid;
    return parent::buildForm($form, $form_state);
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {

    $database = Drupal::database();
    $database->delete('ingredient_list')
      ->condition('pid', $this->pid)
      ->execute();

    $form_state->setRedirect('recipe_search.recipes');

  }
}

//FETCH THE INGREDIENTS TO MAKE AN API CALL
$result = $connection->select('ingredient_list', 'il');
$result->fields('il', array('ingredient', 'pid'));
$result->condition('uid', $uid);
$data = $result->execute();
$results = $data->fetchAll(PDO::FETCH_OBJ);

foreach ($results as $field) {
  $delete = Url::fromUserInput('/delete/'.$field->pid);

  array_push($ingredients, ["ingredient" => $field->ingredient, "delete" => $delete]);
  array_push($ingredientsArray, $field->ingredient);
};