The tournament – Scotland’s first in 23 years – was the stand-out memory for the national team manager when he reflected on 2021, even if it didn’t go quite the way he hoped.
A commendable draw against eventual finalists England was sandwiched between two deflating home defeats by Czech Republic and Croatia that burst the nation-wide excitement bubble, but it could have been different had McGinn made contact with Stuart Armstrong’s cross – and not goalkeeper Dominik Livaković.
"We had a fantastic chance of the back-post and John to this day still can't tell me why he went for it in the manner that he did. He’ll tell you he should have scored and suddenly if you go one-up games can change. But it didn't, that's football. Then Modric did what Modric can do.
"The tournament didn't quite work out the way we wanted, but in terms of development and progress it was massive and brought us together.”
However a couple of epic nights at Hampden righted the record and the Tartan Army can look forward to a World Cup qualifying play-off with Ukraine in March.
"I always felt the tournament would make us better. It didn't look that way when we went to Denmark – it was my most difficult week in terms of preparation with injuries, call-offs and Covid,” he told Scotland’s Youtube channel. "Even in that, where we got criticised, there were a lot of good things we carried into the last six games of [qualifying] tournament.”
He added: “It feels as though the players and crowd have come together again after a number of years where that maybe wasn’t the case.”
Now Clarke wants a selection headache in March, with more options to consider.
“I just hope all the players play well for their clubs, stay in form, don’t get injured. Between beating Serbia and the Euros we lost Kenny McLean and Ryan Jack.
“We have increased the depth and quality. I want them all available so I have a really difficult task to pick a squad that can hopefully win two more matches and make Qatar 2022.”