Frozen spinach sold in stores keeps well for up to a year. If you've frozen them yourself—just blanch them first and drain ...

To preserve the color and texture of frozen spinach, blanch spinach leaves for 2 minutes, dry them with a salad spinner, and ...

Blanch the spinach in hot water for three minutes or until wilted. Drain into a colander and run cold water over it until cool. In a food processor or blender, blend to a smooth paste and set aside.