My favorite Kale Salad

I've had this kale salad served to me at a handful of dinner parties. And it's a hit every time. I'm sure you guys have had this epicurious salad but had to add it to our archives.

2 tablespoons dried currants

7 tablespoons white balsamic vinegar, divided

1 tablespoon unseasoned rice vinegar

1 tablespoon honey

1 tablespoon extra-virgin olive oil

1 teaspoon salt

2 bunches Tuscan kale (about 1 pound), center ribs and stems removed, leaves thinly sliced crosswise

2 tablespoons pine nuts, lightly toasted

Parmesan cheese shavings