public function getIngredients() {
        return $this->hasMany(Ingredient::className(), ['id' => 'ingredient_id'])
                ->viaTable('cocktails_ingredients', ['cocktail_id' => 'id']);
 }

$this->title = 'Create Сocktail';
$this->params['breadcrumbs'][] = ['label' => 'Сocktails', 'url' => ['index']];
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="cocktail-create">

    <h1><?= Html::encode($this->title) ?></h1>

    <?= $this->render('_form', [
        'model' => $model,
    ]) ?>
    //список всех ингредиентов во вью передал
    <br>
    <?php foreach ($ingredients as $ingredient) {
        echo $ingredient['name']."<br>";
    }
    ?>
</div>

    <?= $this->render('_form', [
        'model' => $model,
    ]) ?>

    <?= $form->field($model, 'ingredient_id')->checkbox(
        ArrayHelper::map($ingredients, 'id', 'name')
    ) ?>

    public function actionCreate()
    {
            return $this->render('create', 
                ['model' => $model, 'ingredients' => Ingredient::find()->all()]
            );
    }

$this->render('_form', ['model'=>$model, 'ingredients'=>$ingredients])