Enjoy green tea in a snap by shaking instead of steeping. Matcha green-tea powder— finely milled whole tea leaves— cuts out time-consuming brewing and also offers greater nutritional value than regular green tea. (You’re ingesting the whole leaves, not just the brewed water.) Combine a few ice cubes, 1 cup water, and 1/2 teaspoon matcha powder in a lidded jar. Sweeten with superfine sugar or agave syrup, if desired. Secure the lid and shake vigorously several times until the powder is dissolved.