The match was settled in the first half, as a Bassem Morsy brace gave the White Knight a two-goal advantage that Ahly were unable to respond two.
Having already been confirmed as Egypt’s league champions this season, the triumph completes a historic double for Zamalek—only the second time in the club’s 104-year history that they have won both domestic honours in the same campaign.
The cup win is also Zamalek’s third-consecutive triumph in the competition, and represents the first time in the history of the competition that a team other than Ahly has won the tournament at least three times in a row.
Morsy opened the scoring on 11 minutes, firing a powerful left-footed effort past Sherif Ekramy after receiving a cross from Moruf Yusuf and evading the challenge of Hussein El-Sayed.
Ahly had several chances to draw level, but the White Knight backline proved resilient, thwarting their bitter opponents on multiple occasions.
It was a defensive error at the other end—in the heart of the Red Devils backline—that ultimately decided the match. Saad Samir misjudged a header from Bassem Ali, and the quick-thinking Morsy demonstrated terrific instinct to lob the ball over the hapless Ekramy.
The victory was Zamalek’s first victory over their Cairene rivals after 21 games without a win, and Jesualdo Ferreira will now hope that his side can go on and complete an outstanding campaign with victory in the CAF Confederation Cup.
Having seen off Orlando Pirates to take top spot in Group B, Zamalek now face a double-header with Tunisian side Etoile du Sahel.
Ahly, by contrast, will be hoping to salvage a miserable campaign by overcoming Bucs in their semi-final. Eric Tinkler's side ought to be encouraged by the Egyptian side’s disappointing defensive showing during the first half, but as the game wore on, Ahly proved that they boast competent and capable attackers, and demonstrated invention and creativity during the second half.