diff --git a/core/modules/jsonapi/tests/src/Functional/MenuLinkContentTest.php b/core/modules/jsonapi/tests/src/Functional/MenuLinkContentTest.php
index 05d7f47c24..33d7da7cf2 100644
--- a/core/modules/jsonapi/tests/src/Functional/MenuLinkContentTest.php
+++ b/core/modules/jsonapi/tests/src/Functional/MenuLinkContentTest.php
@@ -137,6 +137,17 @@ protected function getExpectedDocument() {
               ],
             ],
           ],
+          'menu' => [
+            'data' => NULL,
+            'links' => [
+              'related' => [
+                'href' => $self_url . '/menu',
+              ],
+              'self' => [
+                'href' => $self_url . '/relationships/menu',
+              ],
+            ],
+          ],
         ],
       ],
     ];
diff --git a/core/modules/menu_link_content/menu_link_content.install b/core/modules/menu_link_content/menu_link_content.install
index 6086ac08f5..718fea0a51 100644
--- a/core/modules/menu_link_content/menu_link_content.install
+++ b/core/modules/menu_link_content/menu_link_content.install
@@ -5,9 +5,26 @@
  * Install, update and uninstall functions for the menu_link_content module.
  */
 
+use Drupal\Core\Field\BaseFieldDefinition;
+
 /**
  * Implements hook_update_last_removed().
  */
 function menu_link_content_update_last_removed() {
   return 8601;
 }
+
+/**
+ * Implements hook_update_N().
+ */
+function menu_link_content_update_8602() {
+  $new_menu_storage_definition = BaseFieldDefinition::create('entity_reference')
+    ->setLabel(t('Menu'))
+    ->setSetting('target_type', 'menu')
+    ->setRequired(TRUE)
+    ->setDefaultValue(['target_id' => 'main'])
+    ->setDescription(t('The menu this link is part of.'));
+  $entityUpdateManager = \Drupal::entityDefinitionUpdateManager();
+
+  $entityUpdateManager->installFieldStorageDefinition('menu', 'menu_link_content', 'menu_link_content', $new_menu_storage_definition);
+}
\ No newline at end of file
diff --git a/core/modules/menu_link_content/src/Entity/MenuLinkContent.php b/core/modules/menu_link_content/src/Entity/MenuLinkContent.php
index 90ff62eaea..e8526d477a 100644
--- a/core/modules/menu_link_content/src/Entity/MenuLinkContent.php
+++ b/core/modules/menu_link_content/src/Entity/MenuLinkContent.php
@@ -8,6 +8,7 @@
 use Drupal\Core\Field\BaseFieldDefinition;
 use Drupal\link\LinkItemInterface;
 use Drupal\menu_link_content\MenuLinkContentInterface;
+use Drupal\system\MenuInterface;
 
 /**
  * Defines the menu link content entity class.
@@ -80,6 +81,14 @@ public function setInsidePlugin() {
     $this->insidePlugin = TRUE;
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function setMenu(MenuInterface $menu) {
+    $this->set('menu', $menu->id());
+    return $this;
+  }
+
   /**
    * {@inheritdoc}
    */
@@ -101,6 +110,13 @@ public function getMenuName() {
     return $this->get('menu_name')->value;
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function getMenu() {
+    return $this->get('menu')->entity;
+  }
+
   /**
    * {@inheritdoc}
    */
@@ -323,6 +339,13 @@ public static function baseFieldDefinitions(EntityTypeInterface $entity_type) {
       ->setDefaultValue('tools')
       ->setSetting('is_ascii', TRUE);
 
+    $fields['menu'] = BaseFieldDefinition::create('entity_reference')
+      ->setLabel(t('Menu'))
+      ->setSetting('target_type', 'menu')
+      ->setRequired(TRUE)
+      ->setDefaultValue(['target_id' => 'main'])
+      ->setDescription(t('The menu this link is part of.'));
+
     $fields['link'] = BaseFieldDefinition::create('link')
       ->setLabel(t('Link'))
       ->setDescription(t('The location this menu link points to.'))
diff --git a/core/modules/menu_link_content/src/Form/MenuLinkContentForm.php b/core/modules/menu_link_content/src/Form/MenuLinkContentForm.php
index a7525c0ddc..3e52b68cbb 100644
--- a/core/modules/menu_link_content/src/Form/MenuLinkContentForm.php
+++ b/core/modules/menu_link_content/src/Form/MenuLinkContentForm.php
@@ -115,6 +115,7 @@ public function buildEntity(array $form, FormStateInterface $form_state) {
 
     $entity->parent->value = $parent;
     $entity->menu_name->value = $menu_name;
+    $entity->menu->target_id = $menu_name;
     $entity->enabled->value = (!$form_state->isValueEmpty(['enabled', 'value']));
     $entity->expanded->value = (!$form_state->isValueEmpty(['expanded', 'value']));
 
diff --git a/core/modules/menu_link_content/src/MenuLinkContentInterface.php b/core/modules/menu_link_content/src/MenuLinkContentInterface.php
index 583d162097..5acdb518d0 100644
--- a/core/modules/menu_link_content/src/MenuLinkContentInterface.php
+++ b/core/modules/menu_link_content/src/MenuLinkContentInterface.php
@@ -5,6 +5,7 @@
 use Drupal\Core\Entity\EntityChangedInterface;
 use Drupal\Core\Entity\ContentEntityInterface;
 use Drupal\Core\Entity\EntityPublishedInterface;
+use Drupal\system\MenuInterface;
 use Drupal\Core\Entity\RevisionLogInterface;
 
 /**
@@ -17,6 +18,16 @@
    */
   public function setInsidePlugin();
 
+  /**
+   * Sets the menu entity of the custom menu link.
+   *
+   * @param \Drupal\system\MenuInterface $menu
+   *   The menu entity.
+   *
+   * @return $this
+   */
+  public function setMenu(MenuInterface $menu);
+
   /**
    * Gets the title of the menu link.
    *
@@ -41,6 +52,14 @@ public function getUrlObject();
    */
   public function getMenuName();
 
+  /**
+   * Gets the menu entity of the custom menu link.
+   *
+   * @return \Drupal\system\MenuInterface
+   *   The menu entity.
+   */
+  public function getMenu();
+
   /**
    * Gets the description of the menu link for the UI.
    *
diff --git a/core/modules/menu_link_content/tests/src/Functional/Rest/MenuLinkContentResourceTestBase.php b/core/modules/menu_link_content/tests/src/Functional/Rest/MenuLinkContentResourceTestBase.php
index 3cdf2eff73..a54b2237e9 100644
--- a/core/modules/menu_link_content/tests/src/Functional/Rest/MenuLinkContentResourceTestBase.php
+++ b/core/modules/menu_link_content/tests/src/Functional/Rest/MenuLinkContentResourceTestBase.php
@@ -149,6 +149,13 @@ protected function getExpectedNormalizedEntity() {
           'value' => 'main',
         ],
       ],
+      'menu' => [
+        [
+          'target_id' => 'main',
+          'target_type' => 'menu',
+          'target_uuid' => $this->entity->menu->entity->uuid()
+        ],
+      ],
       'langcode' => [
         [
           'value' => 'en',