domain name system - How can I verify Windows DNS forwarders are working?

I thought I knew how to do this, but I guess not.

Even the d2 debugging in nslookup doesn't show the actual forwarder being queried.

So...let's say I set up DNS forwarders in a Windows DNS server and then query using nslookup (or something else?) that server for an external FQDN like "www.purpleflowers.com".

Can I actually see where the Windows DNS server is querying its forwarder, which forwarder it ended up using, and the response from that forwarder?