--- a/configmix/config.py	Thu Nov 30 21:11:47 2023 +0100
+++ b/configmix/config.py	Mon Dec 04 09:20:30 2023 +0100
@@ -22,6 +22,7 @@
         from ordereddict import OrderedDict as ConfigurationBase
     except ImportError:
         ConfigurationBase = dict
+import copy
 try:
     from urllib.parse import urlsplit
 except ImportError:
@@ -1180,6 +1181,15 @@
         """
         return self.jailed(rootpath=rootpath, root=root).iter_jailed()
 
+    def extract_new_config(self, *path, **kwds):
+        """Get the value at `path` and make a new :class:`~.Configuration` from it.
+
+        The new config is a deepcopy and completely independent of the source
+        configuration.
+
+        """
+        return self.__class__(copy.deepcopy(self.getvarl(*path, **kwds)))
+
 
 class _JailedConfiguration(CoercingMethodsMixin):