Cook two 10-ounce bags fresh spinach(not baby) in a large pot of boiling saltedwater just until wilted, 1-2 minutes.
Drain,then transfer to a bowl of ice water; letcool.
Drain and squeeze out excess water.
Heat 2 tablespoons toasted sesame oil in alarge nonstick skillet over medium heat.
Add 2 chopped garlic cloves and cook,stirring, until fragrant, 1 minute.
Addspinach, 2 tablespoons reduced-sodium soysauce, and 1 teaspoon distilled white vinegar.Stir to combine; season with kosher salt andfreshly ground black pepper.