diff --git a/src/Controller/FoodOrderController.php b/src/Controller/FoodOrderController.php
index e0d94ac..f74661d 100644
--- a/src/Controller/FoodOrderController.php
+++ b/src/Controller/FoodOrderController.php
@@ -3,9 +3,12 @@
 namespace App\Controller;
 
 use App\Entity\FoodOrder;
+use App\Entity\ItemExtra;
 use App\Entity\MenuItem;
+use App\Entity\MenuItemAlias;
 use App\Entity\OrderItem;
-use App\Form\MenuItemExtraType;
+use App\Form\ItemExtraType;
+use App\Form\MenuItemType;
 use App\Form\OrderItemType;
 use App\Repository\ItemExtraRepository;
 use Doctrine\ORM\EntityManagerInterface;
@@ -23,15 +26,50 @@ class FoodOrderController extends AbstractController
 
     final public const APP_FOODORDER_CLOSE = 'app_foodorder_close';
 
-    #[Route('/{id}', name: self::APP_FOOD_ORDER_SHOW, methods: ['GET'])]
-    public function show(FoodOrder $foodOrder): Response
-    {
+    final public const APP_FOODORDER_COPY_ITEM = 'app_foodorder_item_copy';
+
+    final public const APP_FOODORDER_REMOVE_ITEM = 'app_foodorder_item_remove';
+
+    #[Route(
+        '/{id}',
+        name: self::APP_FOOD_ORDER_SHOW,
+        methods: [Request::METHOD_GET, Request::METHOD_POST],
+    )]
+    public function show(
+        FoodOrder $foodOrder,
+        Request $request,
+        EntityManagerInterface $entityManager,
+    ): Response {
+        $newItem = new MenuItem;
+        $newItem->setVendor($foodOrder->getVendor());
+        $newItem->setPrice(0);
+        $newItemForm = $this->createForm(MenuItemType::class, $newItem);
+        $newItemForm->handleRequest($request);
+
+        if ($newItemForm->isSubmitted() && $newItemForm->isValid()) {
+            $name = (string) $newItemForm->get('name')
+                ->getData();
+            $alias = new MenuItemAlias;
+            $alias->setName($name);
+            $alias->setMenuItem($newItem);
+            $entityManager->persist($newItem);
+            $entityManager->persist($alias);
+            $entityManager->flush();
+            return $this->redirectToRoute(
+                self::APP_FOOD_ORDER_SHOW,
+                [
+                    'id' => $foodOrder->getId(),
+                ],
+            );
+        }
+
         return $this->render(
             'food_order/show.html.twig',
             [
                 'food_order' => $foodOrder,
                 'menu_items' => $foodOrder->getVendor()
                     ->getMenuItems(),
+                'form' => $newItemForm,
             ],
         );
     }
@@ -89,38 +127,88 @@ class FoodOrderController extends AbstractController
             );
         }
 
-        $formExtra = $this->createForm(
-            MenuItemExtraType::class,
-
+        $newExtra = new ItemExtra;
+        $newExtra->setMenuItem($menuItem);
+        $extraForm = $this->createForm(
+            ItemExtraType::class,
+            $newExtra,
+            [
+                'menuItem' => $menuItem,
+            ],
         );
+        $extraForm->handleRequest($request);
+
+        if ($extraForm->isSubmitted() && $extraForm->isValid()) {
+            $entityManager->persist($newExtra);
+            $entityManager->flush();
+            return $this->redirectToRoute(
+                self::APP_FOODORDER_ADD_ITEM,
+                [
+                    'foodOrder' => $foodOrder->getId(),
+                    'menuItem' => $menuItem->getId(),
+                ],
+                Response::HTTP_SEE_OTHER,
+            );
+        }
 
         return $this->render(
             'food_order/orderitem.html.twig',
             [
                 'form' => $form,
+                'extraForm' => $extraForm,
                 'extras' => $extraRepository->getUniqueNames(),
             ],
         );
     }
 
     #[Route(
-        '/{foodOrder}/remove_item/{orderItem}',
-        name: 'app_foodorder_remove_item',
+        '/item/remove/{orderItem}',
+        name: self::APP_FOODORDER_REMOVE_ITEM,
         methods: [Request::METHOD_GET],
     )]
     public function remove(
-        FoodOrder $foodOrder,
         OrderItem $orderItem,
         EntityManagerInterface $entityManager,
     ): Response {
+        $orderId = $orderItem->getFoodOrder()
+            ->getId();
         $entityManager->remove($orderItem);
         $entityManager->flush();
         return $this->redirectToRoute(
             self::APP_FOOD_ORDER_SHOW,
             [
-                'id' => $foodOrder->getId(),
+                'id' => $orderId,
             ],
             Response::HTTP_SEE_OTHER,
         );
     }
+
+    #[Route(
+        '/item/copy/{orderItem}',
+        name: self::APP_FOODORDER_COPY_ITEM,
+        methods: [Request::METHOD_GET],
+    )]
+    public function copyItem(
+        OrderItem $orderItem,
+        EntityManagerInterface $entityManager,
+    ): Response {
+        $newItem = new OrderItem;
+        $newItem->setFoodOrder($orderItem->getFoodOrder());
+        $newItem->setMenuItem($orderItem->getMenuItem());
+
+        foreach ($orderItem->getExtras() as $extra) {
+            $newItem->getExtras()
+                ->add($extra);
+        }
+
+        $entityManager->persist($newItem);
+        $entityManager->flush();
+        return $this->redirectToRoute(
+            self::APP_FOOD_ORDER_SHOW,
+            [
+                'id' => $orderItem->getFoodOrder()
+                    ->getId(),
+            ],
+        );
+    }
 }
diff --git a/src/Entity/FoodOrder.php b/src/Entity/FoodOrder.php
index 670c416..5afbc96 100644
--- a/src/Entity/FoodOrder.php
+++ b/src/Entity/FoodOrder.php
@@ -11,6 +11,8 @@ use Symfony\Bridge\Doctrine\IdGenerator\UlidGenerator;
 use Symfony\Bridge\Doctrine\Types\UlidType;
 use Symfony\Component\Uid\Ulid;
 
+use function iterator_to_array;
+
 #[ORM\Entity(repositoryClass: FoodOrderRepository::class)]
 class FoodOrder
 {
@@ -130,6 +132,12 @@ class FoodOrder
 
     public function groupedOrderItems(): Collection
     {
-        return $this->getOrderItems();
+        $iterator = $this->orderItems->getIterator();
+        $orderFunction = static fn(OrderItem $a, OrderItem $b): int
+            => $a->getMenuItem()
+                ->getId()
+                ->compare($b->getMenuItem()->getId());
+        $iterator->uasort($orderFunction);
+        return new ArrayCollection(iterator_to_array($iterator));
     }
 }
diff --git a/src/Entity/ItemExtra.php b/src/Entity/ItemExtra.php
index 2c770fd..60ae4ee 100644
--- a/src/Entity/ItemExtra.php
+++ b/src/Entity/ItemExtra.php
@@ -11,23 +11,18 @@ use Symfony\Component\Uid\Ulid;
 #[ORM\Entity(repositoryClass: ItemExtraRepository::class)]
 class ItemExtra
 {
-    #[ORM\Id]
-    #[ORM\GeneratedValue(strategy: 'CUSTOM')]
-    #[ORM\Column(type: UlidType::NAME, unique: true)]
-    #[ORM\CustomIdGenerator(class: UlidGenerator::class)]
-    private Ulid $id;
-
-    #[ORM\Column(length: 50)]
-    private string|null $name = null;
-
-    #[ORM\ManyToOne(inversedBy: 'itemExtras')]
-    #[ORM\JoinColumn(nullable: false)]
-    private MenuItem|null $menuItem = null;
-
-    public function __construct()
-    {
-        $this->id = new Ulid;
-    }
+    public function __construct(
+        #[ORM\Column(length: 50)]
+        private string|null $name = null,
+        #[ORM\ManyToOne(inversedBy: 'itemExtras')]
+        #[ORM\JoinColumn(nullable: false)]
+        private MenuItem|null $menuItem = null,
+        #[ORM\Id]
+        #[ORM\GeneratedValue(strategy: 'CUSTOM')]
+        #[ORM\Column(type: UlidType::NAME, unique: true)]
+        #[ORM\CustomIdGenerator(class: UlidGenerator::class)]
+        private Ulid $id = new Ulid,
+    ) {}
 
     public function getId(): Ulid
     {
diff --git a/src/Form/ItemExtraType.php b/src/Form/ItemExtraType.php
new file mode 100644
index 0000000..b71bce6
--- /dev/null
+++ b/src/Form/ItemExtraType.php
@@ -0,0 +1,31 @@
+<?php declare(strict_types=1);
+
+namespace App\Form;
+
+use App\Entity\ItemExtra;
+use App\Entity\MenuItem;
+use Override;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+class ItemExtraType extends AbstractType
+{
+    #[Override]
+    public function buildForm(FormBuilderInterface $builder, array $options): void
+    {
+        $builder->add(child: 'name', options: [
+            'label' => 'custom extra',
+        ]);
+    }
+
+    #[Override]
+    public function configureOptions(OptionsResolver $resolver): void
+    {
+        $resolver->setDefaults([
+            'data_class' => ItemExtra::class,
+        ]);
+        $resolver->setRequired('menuItem');
+        $resolver->setAllowedTypes('menuItem', MenuItem::class);
+    }
+}
diff --git a/src/Form/MenuItemExtraType.php b/src/Form/MenuItemExtraType.php
index 28ae522..f90e299 100644
--- a/src/Form/MenuItemExtraType.php
+++ b/src/Form/MenuItemExtraType.php
@@ -1,5 +1,4 @@
-<?php
-declare(strict_types=1);
+<?php declare(strict_types=1);
 
 namespace App\Form;
 
@@ -30,7 +29,7 @@ class MenuItemExtraType extends AbstractType
         );
     }
 
-    #[\Override]
+    #[Override]
     public function configureOptions(OptionsResolver $resolver): void
     {
         $resolver->setDefaults([
diff --git a/src/Form/MenuItemType.php b/src/Form/MenuItemType.php
new file mode 100644
index 0000000..93be546
--- /dev/null
+++ b/src/Form/MenuItemType.php
@@ -0,0 +1,43 @@
+<?php declare(strict_types=1);
+
+namespace App\Form;
+
+use App\Entity\MenuItem;
+use Override;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+use Symfony\Component\Validator\Constraints\GreaterThanOrEqual;
+
+class MenuItemType extends AbstractType
+{
+    #[Override]
+    public function buildForm(FormBuilderInterface $builder, array $options): void
+    {
+        $builder
+            ->add(child: 'name', type: TextType::class, options: [
+                'mapped' => false,
+            ])
+            ->add(
+                child: 'price',
+                options: [
+                    'label' => 'Price in cents',
+                    'constraints' => [
+                        new GreaterThanOrEqual([
+                            'value' => 0,
+                            'message' => 'The price must be a positive number or zero.',
+                        ]),
+                    ],
+                ],
+            );
+    }
+
+    #[Override]
+    public function configureOptions(OptionsResolver $resolver): void
+    {
+        $resolver->setDefaults([
+            'data_class' => MenuItem::class,
+        ]);
+    }
+}
diff --git a/symfony.lock b/symfony.lock
index 7d8f3b0..84532e6 100644
--- a/symfony.lock
+++ b/symfony.lock
@@ -5,7 +5,7 @@
             "repo": "github.com/symfony/recipes",
             "branch": "main",
             "version": "2.10",
-            "ref": "310a02a22033e35640468f48ff6bf31a25891537"
+            "ref": "c170ded8fc587d6bd670550c43dafcf093762245"
         },
         "files": [
             "config/packages/doctrine.yaml",
diff --git a/templates/food_order/orderitem.html.twig b/templates/food_order/orderitem.html.twig
index 8c26a22..6bf2e30 100644
--- a/templates/food_order/orderitem.html.twig
+++ b/templates/food_order/orderitem.html.twig
@@ -1,7 +1,8 @@
 {% extends 'base.html.twig' %}
 
 {% block body %}
-    {{ include('_form.html.twig') }}
+    {% include('_form.html.twig') %}
+    {% include('_form.html.twig') with {'form': extraForm, 'button_label': 'add extra'} only %}
     <datalist id="item-extra-list">
         {% for item in extras %}
             <option value="{{ item.name }}"></option>
diff --git a/templates/food_order/show.html.twig b/templates/food_order/show.html.twig
index 371ee01..29f4cb5 100644
--- a/templates/food_order/show.html.twig
+++ b/templates/food_order/show.html.twig
@@ -53,6 +53,22 @@
                 {{ orderItem.menuItem.price|cents_to_eur }}
             </td>
             <td>
+                <a
+                        href="{{ path(
+                            'app_foodorder_item_copy',
+                            {
+                               'orderItem': orderItem.id
+                            }
+                        ) }}"
+                >+1</a> |
+                <a
+                        href="{{ path(
+                            'app_foodorder_item_remove',
+                            {
+                                'orderItem': orderItem.id
+                            }
+                        ) }}"
+                >del</a> |
             </td>
         </tr>
     {% endfor %}
@@ -90,4 +106,6 @@
         </tr>
     {% endfor %}
 </table>
+
+    {% include('_form.html.twig') %}
 {% endblock %}