How To Cut Large Winter Squash Back to Vegetable Menu An example of a large, thick, bumpy skinned squash is the Hubbard squash. Shown here are two suggested techniques for cutting a large squash into two pieces. Begin by making a cut in the skin of the large squash to prevent the blade from slipping. Place the blade of a large chef's knife into the shallow cut. Using a kitchen mallet, begin tapping the blade at the base of the knife until the squash has been cut through. This technique works best when the blade of the knife is large enough to cover the circumference of the squash. If you have grown large squash in the garden and plan on serving them often, purchase a small hand saw to be used solely for this purpose. The saw cuts easily through the large squash and leaves behind a clean cut. Using a large spoon or scraping tool, remove the stringy fibers and seeds from the cavity of the squash.Clean seeds and fibers from each half before cooking. Cleaning the seeds and fibers out will leave quite a large cavity in the squash.