Hold onto your butternut squash carefully with one hand while you slice off each end with a large, sharp knife.
Using a vegetable peeler or a paring knife, cut around the bottom rounded part to remove the skin. This will be a horizontal motion around the curve.
Stand the butternut squash up on the cut botom surface. Using a vegetable peeler or paring knife, peel the rest of the skin from top to bottom in vertical cuts.
Slice the peeled butternut squash into rounds - about 1 inch thick.
Use a spoon to scoop out and remove any seeds from the cut rounds.
Cube the deseeded, peeled, rounds into the appropriate size.
You can prepare your butternut squash ahead of time and keep it tightly covered in the refrigerator till ready to use. Depending on the freshness of your squash, you should be able to keep it in the fridge for 3-5 days.