There'll Always Be An Englund

A WISE man said: "When all else in chess fails, try having fun."
Paul May (154) - Spanton (170)
Doncaster U171 Round 3
Englund Gambit
1.d4 e5!? 2.dxe5 Nc6 3.e3!?
It should not come as a surprise to learn the normal move is 3.Nf3.
3...Nxe5 4.c4 Nf6 5.Nh3?!
I cannot see the point of this. White usually plays 5.Nc3.
5...d5 6.Nf4 Bb4+ 7.Bd2 Bxd2+ 8.Qxd2 dxc4 9.Qxd8+ Kxd8
Black's king can no longer castle, but that does not seem a serious problem in this position. Meanwhile, White is a pawn down.
10.Na3 g5!?
Exploiting the knight's lack of good squares.
11.0-0-0+ Ke7 12.Nd5+ Nxd5 13.Rxd5 f6

What should White play?

*****
*****
*****
*****
*****
14.Nxc4?
Stockfish10 and Komodo10 agree best is 14.f4.
14...Be6 15.Rd4 c5 16.Re4 Bd5
White loses the exchange.
17.Rxe5+ fxe5 18.Nxe5 Bxa2 (0-1, 37 moves).