Poaching an egg sounds simple in theory, but turning out one that’s symmetrical without pieces of whites floating away at the edges is actually tricky. Cuisipro’s Stainless Steel Egg Poacher can help. The ovoid-shaped tools clip to the rim of the pot and nestle the eggs, letting simmering water (with a splash of vinegar) circulate around them. Full story for BostonGlobe.com subscribers.