The difference is actually fairly simple. When cutting something "lengthwise," a general rule is to cut vertically. And for "crosswise," the opposite: Horizontally slice through the middle.

Sometimes recipes dictate whether something should be cut lengthwise or crosswise. And while it's easy to dismiss the difference (it's all just getting chopped up, right?) sometimes the ...

Coat an 8-by-11 1/2-inch baking dish with cooking spray. To prepare eggplant: Cut eggplants crosswise into 1/4-inch-thick slices. Whisk egg whites with water in a shallow dish until frothy.