The Dons players flew out the traps, with the entirety of the first five minutes being played in Fortune's half.
It seemed like the early pressure was going to count for nothing but Josh Cinna's long throws continued to cause problems for opposition defenders. This time, he found the head of a Fortune player who could do nothing but turn it into his own net on 29 minutes.
A tall Fortune side did pose a threat from corners and stand-in keeper Richard Reback pulled off several smart saves to keep the home team at bay. Eventually though, Forutne grabbed an equaliser from a set-piece, which the Dons failed to deal with, allowing Jordan Jay to level.
But the away side got back in front after a lovely exchange between Cohen and Sammy Hakimian saw the latter go through on goal and slot calmly into the corner just before half-time.
After the break, the boys from Mill Hill started even brighter than in the first half, scoring two goals in quick succession to put the game out of sight.
Nick Phillips clipped a delightful ball through to Cohen to make it 3-1 on 47 minutes and moments later, Harry Moss carried the ball 30 yards, before sliding Cohen in for his second of the day. Cohen then completed his hat-trick on the hour mark, after Jason Weldon's touch put him through on goal.
Reflecting on the Dons's fifth win in six league match, assistant-manager Jamie Nagioff told JC Sport: "The boys were outstanding today. We had a very clear game-plan going into the match and the players executed it perfectly.
"It's a joy to watch the squad continue to improve each week and we really look like a well-drilled outfit, with every player knowing their job and exactly what is expected of them.
"We're already looking forward to next week's game and I believe, if we keep playing the way we are, we can beat any side in this division."
Fortune joint-manager Darren Zitren told JC Sport: "Unfortunately it was not the result we wanted today. We had to shift the team around after Sam Sicurel had to go off early on and Simon Cohen pulled out pre-match, both due to back injuries.
"We more than matched the Dons in the first half and got back into the game after going 1-0 down. We drew level 10 minutes from half-time and looked like going in 2-1 up, however luck wasn’t on our side and a freak goal meant we went in 2-1 down.
"We were caught napping in the second half and conceded three goals in less than 10 minutes. We didn’t concede for a further 35 minutes and looked like the stronger team for large spells.
"Take no credit away from MH Dons, they battled hard and scored some great goals.
"We are still confident results will come our way and despite this loss, confidence and morale is high."