The chayote is a pear-shaped squash that possesses a mild nutty flavor similar to that of butternut squash. The skin of this "vegetable pear" can often be covered in spiny hairs that can be removed by gently scrubbing. The skin of chayote can be tough, especially those of larger squash, and should be removed. You can easily dispatch it with a vegetable peeler or sharp paring knife, but take additional precautions because the chayote's spiny skin isn’t the only hazard.
Thoroughly rinse the chayote in cold running water. If the chayote has bothersome prickles, lightly scrub to remove them.
Take a vegetable peeler and carefully remove the skin from the chayote, holding the peeler in your dominant hand and peeling away from your body. If you don't have a vegetable peeler you can use a sharp paring knife to carefully remove the skin. You should wear rubber gloves while peeling chayote because it releases a sticky sap that can cause skin irritation and numbness.
Trim the ends -- the base and the stem -- with a sharp knife to remove any excess skin. Rinse the chayote once all of the peel has been removed to eliminate any excess sap. Prepare as desired.