I’d wager most American coffee-drinkers have sampled a Keurig brew. If you don’t already own one of the single-serve coffee makers, perhaps your aunt shared a cup during the holidays, or there’s one in the office break room. Intuitive to use, easy to maintain and long-lasting, the appliance offers terrific practicality. Simply pop in a pre-bought coffee pod, hit a button and watch a cup pour out.      Courtesy of The Milk Pod, such easy extraction now extends to dairy, too. Compatible with Keurig brewers, these single-serve capsules produce rich-textured milk with a single push. Impressively, the pods are shelf-stable for 15 months and don’t even require refrigeration. Currently available in three classic coffee flavors — plain, vanilla and caramel—they’re made with milk powder and natural ingredients. Rather than just hot milk, the dairy’s composition turns out frothy, yielding a latte-like consistency. It’s an intriguing addition to Keurig’s already expansive pod selection.   Coffee and milk, all at the press of a button Unlike a milk frother or steam wand, the pods require minimal instruction. They insert …