diff --git a/migrations/Version20240213204922.php b/migrations/Version20240213204922.php
new file mode 100644
index 0000000..efce817
--- /dev/null
+++ b/migrations/Version20240213204922.php
@@ -0,0 +1,67 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20240213204922 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('CREATE TABLE food_order (id BLOB NOT NULL --(DC2Type:ulid)
+        , vendor_id BLOB NOT NULL --(DC2Type:ulid)
+        , closed_at DATETIME DEFAULT NULL --(DC2Type:datetime_immutable)
+        , started_by VARCHAR(30) NOT NULL, started_at DATETIME NOT NULL --(DC2Type:datetime_immutable)
+        , PRIMARY KEY(id), CONSTRAINT FK_4485672F603EE73 FOREIGN KEY (vendor_id) REFERENCES vendor (id) NOT DEFERRABLE INITIALLY IMMEDIATE)');
+        $this->addSql('CREATE INDEX IDX_4485672F603EE73 ON food_order (vendor_id)');
+        $this->addSql('CREATE TABLE item_extra (id BLOB NOT NULL --(DC2Type:ulid)
+        , menu_item_id BLOB NOT NULL --(DC2Type:ulid)
+        , name VARCHAR(50) NOT NULL, PRIMARY KEY(id), CONSTRAINT FK_679816B59AB44FE0 FOREIGN KEY (menu_item_id) REFERENCES menu_item (id) NOT DEFERRABLE INITIALLY IMMEDIATE)');
+        $this->addSql('CREATE INDEX IDX_679816B59AB44FE0 ON item_extra (menu_item_id)');
+        $this->addSql('CREATE TABLE menu_item (id BLOB NOT NULL --(DC2Type:ulid)
+        , vendor_id BLOB NOT NULL --(DC2Type:ulid)
+        , price INTEGER NOT NULL, PRIMARY KEY(id), CONSTRAINT FK_D754D550F603EE73 FOREIGN KEY (vendor_id) REFERENCES vendor (id) NOT DEFERRABLE INITIALLY IMMEDIATE)');
+        $this->addSql('CREATE INDEX IDX_D754D550F603EE73 ON menu_item (vendor_id)');
+        $this->addSql('CREATE TABLE menu_item_alias (id BLOB NOT NULL --(DC2Type:ulid)
+        , menu_item_id BLOB NOT NULL --(DC2Type:ulid)
+        , name VARCHAR(50) NOT NULL, PRIMARY KEY(id), CONSTRAINT FK_EA66C4969AB44FE0 FOREIGN KEY (menu_item_id) REFERENCES menu_item (id) NOT DEFERRABLE INITIALLY IMMEDIATE)');
+        $this->addSql('CREATE INDEX IDX_EA66C4969AB44FE0 ON menu_item_alias (menu_item_id)');
+        $this->addSql('CREATE TABLE order_item (id BLOB NOT NULL --(DC2Type:ulid)
+        , food_order_id BLOB NOT NULL --(DC2Type:ulid)
+        , menu_item_id BLOB NOT NULL --(DC2Type:ulid)
+        , PRIMARY KEY(id), CONSTRAINT FK_52EA1F09A5D24A7A FOREIGN KEY (food_order_id) REFERENCES food_order (id) NOT DEFERRABLE INITIALLY IMMEDIATE, CONSTRAINT FK_52EA1F099AB44FE0 FOREIGN KEY (menu_item_id) REFERENCES menu_item (id) NOT DEFERRABLE INITIALLY IMMEDIATE)');
+        $this->addSql('CREATE INDEX IDX_52EA1F09A5D24A7A ON order_item (food_order_id)');
+        $this->addSql('CREATE INDEX IDX_52EA1F099AB44FE0 ON order_item (menu_item_id)');
+        $this->addSql('CREATE TABLE order_item_item_extra (order_item_id BLOB NOT NULL --(DC2Type:ulid)
+        , item_extra_id BLOB NOT NULL --(DC2Type:ulid)
+        , PRIMARY KEY(order_item_id, item_extra_id), CONSTRAINT FK_1120FDE3E415FB15 FOREIGN KEY (order_item_id) REFERENCES order_item (id) ON DELETE CASCADE NOT DEFERRABLE INITIALLY IMMEDIATE, CONSTRAINT FK_1120FDE34798570D FOREIGN KEY (item_extra_id) REFERENCES item_extra (id) ON DELETE CASCADE NOT DEFERRABLE INITIALLY IMMEDIATE)');
+        $this->addSql('CREATE INDEX IDX_1120FDE3E415FB15 ON order_item_item_extra (order_item_id)');
+        $this->addSql('CREATE INDEX IDX_1120FDE34798570D ON order_item_item_extra (item_extra_id)');
+        $this->addSql('CREATE TABLE vendor (id BLOB NOT NULL --(DC2Type:ulid)
+        , name VARCHAR(50) NOT NULL, PRIMARY KEY(id))');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('DROP TABLE food_order');
+        $this->addSql('DROP TABLE item_extra');
+        $this->addSql('DROP TABLE menu_item');
+        $this->addSql('DROP TABLE menu_item_alias');
+        $this->addSql('DROP TABLE order_item');
+        $this->addSql('DROP TABLE order_item_item_extra');
+        $this->addSql('DROP TABLE vendor');
+    }
+}
diff --git a/src/Entity/OrderItem.php b/src/Entity/OrderItem.php
index b0c4f2b..5dd1533 100644
--- a/src/Entity/OrderItem.php
+++ b/src/Entity/OrderItem.php
@@ -27,6 +27,9 @@ class OrderItem
     #[ORM\JoinColumn(nullable: false)]
     private ?MenuItem $menuItem = null;
 
+    #[ORM\ManyToMany(targetEntity: ItemExtra::class)]
+    private Collection $extras;
+
     public function __construct()
     {
         $this->id = new Ulid;
@@ -61,4 +64,28 @@ class OrderItem
         return $this;
     }
 
+    /**
+     * @return Collection<int, ItemExtra>
+     */
+    public function getExtras(): Collection
+    {
+        return $this->extras;
+    }
+
+    public function addExtra(ItemExtra $extra): static
+    {
+        if (!$this->extras->contains($extra)) {
+            $this->extras->add($extra);
+        }
+
+        return $this;
+    }
+
+    public function removeExtra(ItemExtra $extra): static
+    {
+        $this->extras->removeElement($extra);
+
+        return $this;
+    }
+
 }