diff --git a/superset/dao/base.py b/superset/dao/base.py
index 607967e3041e..0090c4e535e2 100644
--- a/superset/dao/base.py
+++ b/superset/dao/base.py
@@ -175,7 +175,7 @@ def update(
     def delete(cls, model: Model, commit: bool = True) -> Model:
         """
         Generic delete a model
-        :raises: DAOCreateFailedError
+        :raises: DAODeleteFailedError
         """
         try:
             db.session.delete(model)
diff --git a/superset/dashboards/api.py b/superset/dashboards/api.py
index fb9c36ca033b..277e0d10c34a 100644
--- a/superset/dashboards/api.py
+++ b/superset/dashboards/api.py
@@ -1191,5 +1191,6 @@ def delete_embedded(self, dashboard: Dashboard) -> Response:
             500:
               $ref: '#/components/responses/500'
         """
-        dashboard.embedded = []
+        for embedded in dashboard.embedded:
+            DashboardDAO.delete(embedded)
         return self.response(200, message="OK")
diff --git a/tests/integration_tests/dashboards/api_tests.py b/tests/integration_tests/dashboards/api_tests.py
index afeab6e7db8e..a027dcffae60 100644
--- a/tests/integration_tests/dashboards/api_tests.py
+++ b/tests/integration_tests/dashboards/api_tests.py
@@ -1796,6 +1796,8 @@ def test_embedded_dashboards(self):
         self.assertNotEqual(result["uuid"], "")
         self.assertEqual(result["allowed_domains"], allowed_domains)
 
+        db.session.expire_all()
+
         # get returns value
         resp = self.get_assert_metric(uri, "get_embedded")
         self.assertEqual(resp.status_code, 200)
@@ -1810,9 +1812,13 @@ def test_embedded_dashboards(self):
         # put succeeds and returns value
         resp = self.post_assert_metric(uri, {"allowed_domains": []}, "set_embedded")
         self.assertEqual(resp.status_code, 200)
+        result = json.loads(resp.data.decode("utf-8"))["result"]
+        self.assertEqual(resp.status_code, 200)
         self.assertIsNotNone(result["uuid"])
         self.assertNotEqual(result["uuid"], "")
-        self.assertEqual(result["allowed_domains"], allowed_domains)
+        self.assertEqual(result["allowed_domains"], [])
+
+        db.session.expire_all()
 
         # get returns changed value
         resp = self.get_assert_metric(uri, "get_embedded")
@@ -1825,6 +1831,8 @@ def test_embedded_dashboards(self):
         resp = self.delete_assert_metric(uri, "delete_embedded")
         self.assertEqual(resp.status_code, 200)
 
+        db.session.expire_all()
+
         # get returns 404
         resp = self.get_assert_metric(uri, "get_embedded")
         self.assertEqual(resp.status_code, 404)