The lads were hit by an early goal from Matt James after just three minutes of the 80-minute match but eventually got into their stride and both Takura Mtandari and Alex Olsen went close before Ryan Mason curled a shot onto the foot of the post just before the break.
We enjoyed our best spell at the start of the second half and were rewarded when Olsen laid the ball back for Yaser Kasim who chipped to the far post for Troy Archibald-Henville to volley home the equaliser.
Jon Obika was soon denied one-on-one but United then struck on the break as James darted to the near post to volley home Richard Eckersley's cross and that turned out to be the winner.
"I thought it was a free-flowing game with both teams looking to play attacking football," reflected coach Alex Inglethorpe. "We didn't start well, which is unusual for us, and it took us too long to get into stride our but when we did we had some good passages of play and deserved to equalise.
"We needed to respond and needed to get into a style of play that we're more comfortable with and once we did that, I was confident we could score.
"United got stronger as the game went on, we tired a little and when that happened, we started to make the wrong decisions - that's something we have to learn.
"But that's why we have these friendlies or enter tournaments at the end of the season - we want to test their decision making at the end of a season. If they want to progress, especially to the first team, then they need to be able to make the right decisions in meaningful games at the end of the season."
Spurs: Jansson, Smith, Mtandari, Berchiche (Butcher, 59), Archibald-Henville, Fraser-Allen (Townsend, 41), Cox, Hutton (Kasim, 41), Obika (Hutchins, 72), Mason, Olsen.
Our Academy kicked-off a series of private friendlies at Spurs Lodge with a narrow defeat against Manchester United on Wednesday.