Question about fried liver attack.

I recently played in a chess tournament and I played the fried liver attack against one of my opponents. Instead of the common moves I normally see they played a move I had never encountered before, Qf6! We ended up trading pieces and it pretty much killed my attack forcing me into a passive game where I eventually lost due to a passed pawn. Anyone got any ideas on how I could continue aggressively against this line? (If you don't know what the fried liver attack was the line was: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6. Nxf7 Kxf7 7. Qf3+... and in this case continued ... Qf6!)

How could he play Qe5? What position are you talking about?

Sorry meant Qf6 sorry.

5...Nxd5?? is a blunder so you should have had the advantage anyway.

You probably meant 7...Qf6. His king is open, you have a pawn advantage, he cannot castle, black has an isolated king's pawn. You did not play accurate enough, and we could show you were you went wrong exactly, if you show us the game.

Typical problem... your opponent took you out of book, you couldn't figure it out OTB. And I'd also surmise you aren't as comfortable with endgame play as you'd like to be.

Thanks for the reply! I will use this in the event I see that line again.

fried liver is no good in our time

cool puzzle today

Let's put it this way: 

Count the material. There are several ways to take advantage of the position. Here's just about the easiest (tho not quite the best):

IM pfren and SmyslovFan have said all that needs be said, except to make the point that VyboR offered nonsense. 5...Nxd5 is perfectly playable, but a single mistake will prove costly. With vigorous play by White, Black often faces a series of positions where only one move doesn't lose.

In the main line of the Fried Liver, Black is fine with best play. White's best play is vastly easier to manage than Black's OTB. Hence, in practice White does very well in the Fried Liver Attack. 

7...Qf6?? is a blunder. 7...Ke6 is the only move.