"That's what has made us successful over the past couple of seasons, being solid in defence and ruthless in attack. That's the motto. We've just got to try and and build that momentum."
The win sets up a tie with either Mainz 05 or AEK Larnaca in the Round of 16, with the draw taking place tomorrow. The pathway to the final will also be revealed, with potential quarter and semi-final opponents confirmed.
But Henderson says the Eagles won't be taking their opponents lightly and says there's still plenty of work to do in Europe.
"We're hungry for more," he added. "But I think it's cliché in saying that it's the next game that matters. But it's the next game of the competition.
"We can't run away with it. You don't talk about winning three months out.
"Obviously, there's some good teams in the competition. And as shown tonight, it's difficult to break these low blocks down.
"I think we can be better at it, and I think we've just got to show improvement leading into the next games."