Graham Lee once told me that the juniors at his school were quite taken with 1 e4 f5 2 exf5 Kf7 and asked their wise teacher what White should do. Very quickly, Graham came up with 3 Bc4+ first, and only after 3...d5 4.Qh5+, so that 4...g6 5.fxg6+ Kg7 can be followed with 6 Qxd5.
Sounds good to me, at any rate. But I have not analysed 5...Ke6 in detail ...