How do I convert a N vs 2P queenless middlegame/endgame?

@1
"what is the strategy to win a queenless middlegame/endgame such as the one you get in this line in the Halloween Gambit? "
++ Use the extra piece to win 1 or 2 pawns.
Then sacrifice a piece for 1 or 2 pawns so as to emerge with an extra pawn and queen it.

If you can trade down to a, for example,
N + 5P VS 7P endgame, you should be able to win easily.

If you can trade down to a, for example,
N + 5P VS 7P endgame, you should be able to win easily.
Makes sense. That N + 5P vs 7P endgame seems like a good reference for the ideal situation I'm playing for. I guess that's why they say "trade pieces" when you're up material, rather than pieces and pawns. Thanks for the answer!