diff --git a/recipes/acquia_drupal_starterkit_content_model/recipe.yml b/recipes/acquia_drupal_starterkit_content_model/recipe.yml
index fe6ce4804..cddb9c74f 100644
--- a/recipes/acquia_drupal_starterkit_content_model/recipe.yml
+++ b/recipes/acquia_drupal_starterkit_content_model/recipe.yml
@@ -1,4 +1,4 @@
-name: 'Acquia Drupal Startekit Low-Code'
+name: 'Acquia Drupal Startekit Content Model'
 description: 'An content model provides Article, Event, Page, Person, Place content types.'
 type: 'Starterkit'
 recipes:
diff --git a/recipes/acquia_drupal_starterkit_headless/recipe.yml b/recipes/acquia_drupal_starterkit_headless/recipe.yml
index 269922b9a..8cd78a41a 100644
--- a/recipes/acquia_drupal_starterkit_headless/recipe.yml
+++ b/recipes/acquia_drupal_starterkit_headless/recipe.yml
@@ -6,3 +6,13 @@ recipes:
 install:
   # Contrib
   - acquia_cms_headless
+config:
+  actions:
+    project_browser.admin_settings:
+      simple_config_update:
+        allowed_projects:
+          recipes:
+            - acquia_drupal_starterkit_community
+            - acquia_drupal_starterkit_content_model
+            - acquia_drupal_starterkit_headless
+            - acquia_drupal_starterkit_media_model
diff --git a/recipes/acquia_drupal_starterkit_installer/acquia_drupal_starterkit_installer.profile b/recipes/acquia_drupal_starterkit_installer/acquia_drupal_starterkit_installer.profile
index be3dccb9b..ad5155631 100644
--- a/recipes/acquia_drupal_starterkit_installer/acquia_drupal_starterkit_installer.profile
+++ b/recipes/acquia_drupal_starterkit_installer/acquia_drupal_starterkit_installer.profile
@@ -9,7 +9,8 @@ use Drupal\Core\Installer\Form\SiteConfigureForm;
 use Drupal\Core\Installer\Form\SiteSettingsForm;
 use Drupal\Core\Recipe\Recipe;
 use Drupal\Core\Recipe\RecipeRunner;
-use Drupal\acquia_drupal_starterkit_installer\Form\RecipesForm;
+use Drupal\acquia_drupal_starterkit_installer\Form\RecipesStarterkitForm;
+use Drupal\acquia_drupal_starterkit_installer\Form\RecipesAddOnForm;
 use Drupal\acquia_drupal_starterkit_installer\Form\SiteNameForm;
 
 /**
@@ -46,12 +47,19 @@ function acquia_drupal_starterkit_installer_install_tasks_alter(array &$tasks, a
     $tasks_after = array_slice($tasks, $key, NULL, TRUE);
     $tasks = $tasks_before + $additions + $tasks_after;
   };
+
   $insert_before('install_settings_form', [
     'acquia_drupal_starterkit_installer_choose_recipes' => [
       'display_name' => t('Choose add-ons'),
       'type' => 'form',
       'run' => array_key_exists('recipes', $install_state['parameters']) ? INSTALL_TASK_SKIP : INSTALL_TASK_RUN_IF_REACHED,
-      'function' => RecipesForm::class,
+      'function' => RecipesStarterkitForm::class,
+    ],
+    'acquia_drupal_starterkit_installer_addons' => [
+      'display_name' => t('Extend Acquia Drupal Starter Kit with Add-ons'),
+      'type' => 'form',
+      'run' => array_key_exists('recipes_starterkit_addons', $install_state['parameters']) ? INSTALL_TASK_SKIP : INSTALL_TASK_RUN_IF_REACHED,
+      'function' => RecipesAddOnForm::class,
     ],
     'acquia_drupal_starterkit_installer_site_name_form' => [
       'display_name' => t('Name your site'),
diff --git a/recipes/acquia_drupal_starterkit_installer/css/add-ons.css b/recipes/acquia_drupal_starterkit_installer/css/add-ons.css
index a966205e2..ed13271b6 100644
--- a/recipes/acquia_drupal_starterkit_installer/css/add-ons.css
+++ b/recipes/acquia_drupal_starterkit_installer/css/add-ons.css
@@ -18,6 +18,15 @@
   word-wrap: normal;
 }
 
+#edit-add-ons [type="radio"] {
+  position: absolute;
+  overflow: hidden;
+  clip: rect(1px, 1px, 1px, 1px);
+  width: 1px;
+  height: 1px;
+  word-wrap: normal;
+}
+
 #edit-add-ons label {
   display: inline-block;
   color: #39353e;
diff --git a/recipes/acquia_drupal_starterkit_installer/src/Form/RecipesAddOnForm.php b/recipes/acquia_drupal_starterkit_installer/src/Form/RecipesAddOnForm.php
new file mode 100644
index 000000000..2fd25c284
--- /dev/null
+++ b/recipes/acquia_drupal_starterkit_installer/src/Form/RecipesAddOnForm.php
@@ -0,0 +1,78 @@
+<?php
+
+namespace Drupal\acquia_drupal_starterkit_installer\Form;
+
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Provides a form to choose the site template and optional add-on recipes.
+ *
+ * @todo Present this as a mini project browser once
+ *   https://www.drupal.org/i/3450629 is fixed.
+ */
+final class RecipesAddOnForm extends InstallerFormBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormId(): string {
+    return 'acquia_drupal_starterkit_recipes_addon_form';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state): array {
+    $form['#title'] = $this->t('Extend Acquia Drupal Starter Kit with Add-ons');
+
+    $form['help'] = [
+      '#prefix' => '<p class="cms-installer__subhead">',
+      '#markup' => $this->t('You can change your mind later.'),
+      '#suffix' => '</p>',
+    ];
+    $options = [
+      'acquia_drupal_starterkit_content_model' => $this->t('Acquia Drupal Starterkit Content Model'),
+      'acquia_drupal_starterkit_media_model' => $this->t('Acquia Drupal Starterkit Media Model'),
+    ];
+
+    $form['add_ons'] = [
+      '#prefix' => '<div class="cms-installer__form-group">',
+      '#suffix' => '</div>',
+      '#type' => 'checkboxes',
+      '#options' => $options,
+      '#default_value' => [],
+    ];
+    $form['actions'] = [
+      'submit' => [
+        '#type' => 'submit',
+        '#value' => $this->t('Next'),
+        '#button_type' => 'primary',
+      ],
+      'skip' => [
+        '#type' => 'submit',
+        '#value' => $this->t('Skip this step'),
+      ],
+      '#type' => 'actions',
+    ];
+    return parent::buildForm($form, $form_state);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state): void {
+    global $install_state;
+    $install_state['parameters']['recipes'] = $this->getRequest()->get('recipes') ?? [];
+    $install_state['parameters']['recipes_starterkit_addons'] = $install_state['parameters']['recipes'];
+    $pressed_button = $form_state->getTriggeringElement();
+    // Only choose add-ons if the Next button was pressed.
+    if ($pressed_button && end($pressed_button['#array_parents']) === 'submit') {
+      $add_ons = $form_state->getValue('add_ons', []);
+      $add_ons = array_filter($add_ons);
+      array_push($install_state['parameters']['recipes'], ...array_values($add_ons));
+      array_push($install_state['parameters']['recipes_starterkit_addons'], ...array_values($add_ons));
+    }
+
+  }
+
+}
diff --git a/recipes/acquia_drupal_starterkit_installer/src/Form/RecipesForm.php b/recipes/acquia_drupal_starterkit_installer/src/Form/RecipesStarterkitForm.php
similarity index 81%
rename from recipes/acquia_drupal_starterkit_installer/src/Form/RecipesForm.php
rename to recipes/acquia_drupal_starterkit_installer/src/Form/RecipesStarterkitForm.php
index d6186ff0d..51d144d1d 100644
--- a/recipes/acquia_drupal_starterkit_installer/src/Form/RecipesForm.php
+++ b/recipes/acquia_drupal_starterkit_installer/src/Form/RecipesStarterkitForm.php
@@ -10,7 +10,7 @@
  * @todo Present this as a mini project browser once
  *   https://www.drupal.org/i/3450629 is fixed.
  */
-final class RecipesForm extends InstallerFormBase {
+final class RecipesStarterkitForm extends InstallerFormBase {
 
   /**
    * {@inheritdoc}
@@ -35,17 +35,16 @@ public function buildForm(array $form, FormStateInterface $form_state): array {
       'acquia_drupal_starterkit_community' => $this->t('Acquia Drupal Starterkit Community'),
       'acquia_drupal_starterkit_headless' => $this->t('Acquia Drupal Starterkit Headless'),
       'acquia_drupal_starterkit_low_code' => $this->t('Acquia Drupal Starterkit Low-Code'),
-      'acquia_drupal_starterkit_content_model' => $this->t('Acquia Drupal Starterkit Content Model'),
-      'acquia_drupal_starterkit_media_model' => $this->t('Acquia Drupal Starterkit Media Model'),
     ];
 
     $form['add_ons'] = [
       '#prefix' => '<div class="cms-installer__form-group">',
       '#suffix' => '</div>',
-      '#type' => 'checkboxes',
+      '#type' => 'radios',
       '#options' => $options,
       '#default_value' => [],
     ];
+
     $form['actions'] = [
       'submit' => [
         '#type' => 'submit',
@@ -67,13 +66,13 @@ public function buildForm(array $form, FormStateInterface $form_state): array {
   public function submitForm(array &$form, FormStateInterface $form_state): void {
     global $install_state;
     $install_state['parameters']['recipes'] = ['acquia_drupal_starterkit'];
-
     $pressed_button = $form_state->getTriggeringElement();
     // Only choose add-ons if the Next button was pressed.
     if ($pressed_button && end($pressed_button['#array_parents']) === 'submit') {
-      $add_ons = $form_state->getValue('add_ons', []);
-      $add_ons = array_filter($add_ons);
-      array_push($install_state['parameters']['recipes'], ...array_values($add_ons));
+      $add_ons = $form_state->getValue('add_ons');
+      if ($add_ons) {
+        $install_state['parameters']['recipes'][] = $add_ons;
+      }
     }
   }
 
diff --git a/recipes/acquia_drupal_starterkit_low_code/recipe.yml b/recipes/acquia_drupal_starterkit_low_code/recipe.yml
index 6fd66d065..a3a194738 100644
--- a/recipes/acquia_drupal_starterkit_low_code/recipe.yml
+++ b/recipes/acquia_drupal_starterkit_low_code/recipe.yml
@@ -6,3 +6,13 @@ recipes:
 install:
   # Contrib
   - acquia_cms_site_studio
+config:
+  actions:
+    project_browser.admin_settings:
+      simple_config_update:
+        allowed_projects:
+          recipes:
+            - acquia_drupal_starterkit_community
+            - acquia_drupal_starterkit_content_model
+            - acquia_drupal_starterkit_low_code
+            - acquia_drupal_starterkit_media_model