Another great tasting recipe from Cook's Illustrated: Fresh off the cob is perhaps the best way to eat summer corn, but corn tossed with beans and tomatoes is a close second. The sweetness of the beans and the acidity of the tomatoes bring out the flavor of the corn. We wanted to find the best way to combine and flavor this trio. Here’s what we discovered: Boil the ears of corn until just tender, then cool them quickly under running water so that they don’t overcook. Canned black beans taste fine, as long as you rinse and drain them thoroughly to remove any of the liquid in which they come packed. Choose sweet-tasting, firm-textured grape or cherry tomatoes. They release less watery juice into the salad than diced full-size tomatoes do.