It was a very tight contest, but Echoes edged it 2-1 with goals from Jack Watts and Luke Wood to add the trophy to their recent Herts Junior Cup triumph.
Elsewhere, the only game in BSFL Division One this week saw Leverstock Green Corinthians thrash Berko Tornadoes Reserves 6-0 with efforts from Drew Duggan (2), Ross Adams, Ben Davis, Alex Kinsley and Craig Sharples.
Meanwhile, Hemel Athletic have sealed the Division Two title after a 4-1 win over The Midland thanks to strikes from Matt Collier (2), Dean Gregory and Lewis Coates.
Landrovers and FC Intervino shared a 2-2 draw in the other Division Two match, while there were goals galore in Division Three.
Old Bell Athletic romped to a 9-2 win at Gade thanks to Daniel Ciurea, AJ Adzahoe, Lavvi Zgimbau, Charlie Johnson, Ryan Walsham, Jake Lampard, Dave Brown and Tom Guthrie.
A&A Flooring drew 3-3 with Adeyfield Reserves, wile Berko Tornadoes A edged out Boxmoor 3-2 with goals from Nick Gain (2) and Josh Hobbs.
Hemel Tudors added three points to their tally as Josh Leeson (2), Steve Rance and Jack Burows earned a 4-3 victory at Sporting Blackbirds.