Iced lattes can quickly evolve from summer indulgence to expensive habit. Try our speedy at-home version instead.
Make ice cubes from one part cold-brew coffee concentrate and two parts water (to keep your drink from getting diluted). Fill a cocktail shaker with plain ice; add skim milk and sugar. Vigorously shake until foamy. (The sugar makes the milk thick and frothy -- you'll be amazed at how well this works.) Put the coffee ice cubes in a glass; add 1/4 cup cold-brew coffee concentrate. Strain foamed milk on top, and relish every sip.