The striker lashed home a volley in injury time for his second goal of an amazing encounter that we led twice and trailed in once.
Boss Pat Holland takes up the story. "We started okay even though they had a strong side and a couple of boys who had played in the first team in May and Sweeney. We handled them well.
"We took the lead through Jame after good work by Nicky Wettner but then we lost our way a little and the boy May managed to muscle his way onto a long ball to equalise.
"At half-time I told the lads that I fancied our chances of going on to win it but we went out and went 2-1 down straight away, another long ball, and I thought at that time we were in a bit of a pickle.
"But we got back into it when Jamie got the line and cut the ball back for Jon Black and then Johnny Sutton showed a lovely bit of skill from Nicky's cross before shooting home with his left foot for 3-2.
"They got a corner in injury time and threw everyone in, three around the goalkeeper and it worked for them, 3-3 and I thought we'd thrown it away.
"But Ronnie Henry's got hold of the ball from the kick-off, launched it upfield, their centre-back hasn't dealt with it and Jamie's volleyed it home superb. It was an eventful old game and I was pleased for the boys, they deserved it."
Spurs U19s: Rutherford, Perry, McKie, Barnett (Marney, 45), Henry, Dobson, Noto (Bowditch, 60), Black, Sutton, Slabber, Wettner. Unused subs: Eyre, Ford, Malcolm.
Jamie Slabber grabbed a last-gasp winner for our Under-19s just seconds after they looked like they'd been denied a victory.