Aberdeen were looking dominant until against the run of play an excellent through ball released United striker Campbell with space inside the Aberdeen penalty area. Dons keeper Lukasik was quick off his line, staying big and producing an important block.
Aberdeen were straight back on the attack and got their reward after 17 minutes of play. A poorly cleared cross found Connor Devaney who scored a stunning dipping effort from 25 yards into the top right of the Dundee United goal.Aberdeen pushed hard for the second goal and were almost rewarded on 25 minutes when a Stephen O'Neill run and a curling effort from the edge on the area produced a fine save from Anderson in the United goal.
The Dons doubled their tally on 31 minutes when a long ball into the box from right back Jamie Masson found the head of striker McManus who headed home comfortably from close range. The Dons then had efforts from Clark Robertson and McManus saved as Aberdeen pushed for more goals.
However the young Arabs almost grabbed a lifeline as a cross from the United right winger found Thomson unmarked on the back post. It seemed certain that the halftime score would be 2-1 only for the excellent Lukasik to deny the number 11, getting across his goal and blocking at point blank range. A stunning save.
Dundee United started the second half as they ended the first and pushed the Dons back. However the home side remained solid and broke forward with O'Neil', his cross found an unmarked McManus who headed home his second of the game. At 3-0 the game seemed as good as over for United as the Aberdeen defence continued to impress. McManus had a number of close efforts as he looked for a hat-trick.
On with just over 30 to go captain Robertson made way for Ryan Fraser who had an immediate impact. After a couple of quality runs at the Dundee United defence the youngster found McManus with space in the area on 67 minutes. However, a good save from the goalkeeper and a block on the line from the United defenders denied the striker his hat-trick, unfortunately for the away team Dean Carse was on hand to poke home, being the quickest to react to the loose ball.
Aberdeen sub goalkeeper Danny Rodgers was given his first run out with the U19s. The second choice stopper proved he was not just there to make up the numbers, producing a quality save from United's number 12. United were almost granted a fluke consolation when an in swinging corner took everyone by surprise, instinctively cleared of the line by Mason.
Aberdeen ran out 4-0 winners with an assured, attacking display. It is difficult to pick out individuals from such an impressive team display, however Declan McManus particularly impressed, leaving the Arabs defence in disarray at how to defend against him.