Pierce squash a few times all over with a sharp knife.
Place on a baking sheet and cook for 1 hour. Let cool for 15 minutes.
Cut squash in half, lengthwise. Remove and discard the seeds and pulp.
Using a fork, scrape the rest of the squash to get long strands (like spaghetti.) The squash should have a slight crunch (al dente.) Place in a bowl and keep warm.