Leeds' twin midfield starlets made their international bows at Under-19 and Under-20 level on Sunday to put the icing on a 2014-15 campaign to cherish.
The influence that York-born Cook and Doncaster-born Mowatt have had on Leeds United's campaign has been well-documented and it was fitting that both should step up to a new level of international football, and feature prominently in victories for the Three Lions.
Cook has been an England representative since 2011 when he played for the under-16s. Having risen through the levels, he played a major part in securing the UEFA European Under-17s Championship for England last summer. Mowatt meanwhile was first selected for his country in March 2014, when he played in a 3-0 victory over Turkey for the Under-19s.
Injury had forced Mowatt to withdraw from an Under-20s squad earlier this season, but in perfect symmetry, both Leeds' midfield starlets were fresh and available to represent their respective sides this weekend.
With three games scheduled for both teams over the international week, Neil Redfearn had spoken to managers Sean O'Driscoll (Under 19s) and Aidy Boothroyd (Under-20s), and utilisation of the duo was clearly pre-arranged to suit their development and reflect the exertions of a long campaign in which both have featured prominently for Leeds.
Therefore both players sat out Friday's games, but featured for exactly 79 minutes in each of their respective games on Sunday. Whether the pair play any part in the final game this week, remains to be seen.
Cook did his bit in a 1-0 win over Azerbaijan for the Under-19s in a European Championship qualifier in France, with O'Driscoll confident his team will qualify for the final tournament in Greece this summer. Manchester City's Ashley Smith-Brown scored the only goal of the game and Cook came close to scoring a rare goal himself, firing a shot wide as England managed to come away with a victory.
Meanwhile, Mowatt featured heavily in 2-1 victory over the USA for England's Under-20 side in front of 11,000 fans at Plymouth, and like Cook, also came close to get his name on the scoresheet with a couple of strikes on target.
Neil Redfearn will be pleased both players appeared to come away from the exercise unscathed and full of confidence, ready to play their part in the remaining seven games in Leeds United's Sky Bet Championship season.