Blanched Greens

Remove leaves from stems. (Swiss chard stems are edible, so save and cook them) Blanch greens in a large pot of boiling salted water, 15 seconds (spinach and chard) to 2 minutes (kale and collards); drain. When cool enough to handle, squeeze out excess liquid; let cool completely in a single layer on a rimmed baking sheet. Greens can be stored in an airtight container in refrigerator up to 4 days.