Do this for me and then we'll be even I'm trying to convey &quot;If you do x, we'll call it even.&quot;
So my sentence is:

我们可以互相学习，我教你滑雪，作为回报你可以教我什么呢？
We can both learn from each other... I'll teach you to ski... and in return what can you teach me?

She said:

我没有什么特长
I don't have any specialties.

So I was going to say:

How about you cook for me and we'll call it even?

How would I say that?
you might say:
你给我做饭如何？这样我们就扯平了