MySQL Joins with ORDER BY

$recipe = "SELECT * FROM recipes
        JOIN recipe_ingredients ON recipes.recipe_id = recipe_ingredients.recipe_id
        JOIN measurement_qty ON recipe_ingredients.measurement_quantity_id = measurement_qty.measurement_qty_id
        JOIN measurement_units ON recipe_ingredients.measurement_id = measurement_units.measurement_id
        JOIN ingredients ON recipe_ingredients.ingredient_id = ingredients.ingredient_id
        ORDER BY section
        ";

$stmt = $pdo->query($recipe);

$rows = $stmt->fetchAll(PDO::FETCH_GROUP);

foreach($rows as $recipe_id=>$recipe)
            {
                $heading = $recipe[0];

                foreach($recipe as $row)
                {

                }
}