Step 1

Butternut squash is seasonal. In the U.S., the best time to buy ripe local squash is September through October. It may be available at other times throughout the year as an import. Look for butternut squash with a solid beige color, without any deep cuts or bruises. A little surface scratching is normal. Choose squash that feels heavy for its size. Avoid squash with brown patches or punctures, which can introduce bacteria and mold. Butternut squash will keep in a cool, dark part of your kitchen for several weeks-- it does not need to be refrigerated.

Step 2

Mature butternut squash comes in sizes ranging from 1 to 5 lbs. The average butternut squash will be around 2 to 3 lbs. After peeling and seeding, your squash will lose 2-3 oz of weight. For example, a 3 lb squash will yield about 2 lbs 13 oz of flesh. This is helpful to know for recipes that call for a certain amount of diced, peeled squash—if your recipe calls for 2 lbs of diced squash, you’ll want to look for a squash that is around 2 lbs, 3 oz in weight.

Step 3

Note: If your hands are not very strong, or you don’t have a sharp paring knife or serrated peeler, you can microwave the squash before you begin peeling to make the process easier. Pierce the squash a few times with a fork, then microwave for 2 minutes. This will soften the skin connection and make the peeling go faster.

Step 4

Slice off the stem and bottom ends of the squash, so that both ends are flat.

Step 5

Slice the squash in half, just where the thinner end begins to widen around the middle.

Step 6

Turn each half so that a flat end rests against the cutting board. Use a sharp serrated peeler or paring knife to peel off the skin in downward strokes.

Step 7

You will notice light green lines emerging beneath the skin as you peel. You want to make sure to peel all of those green lines away from the squash—they can be tough and fibrous. The squash isn’t completely peeled till all of those green lines have disappeared and the orange flesh remains.

Step 8

Once both halves of the squash are peeled, slice the fatter half lengthwise. Scoop out the seeds with a metal spoon. Reserve those seeds… they are absolutely delicious when roasted! (instructions below)

Step 9

Now you have three sections of peeled squash, which you can slice or dice depending on your preference.

Step 10

I usually dice the squash into 1-inch cubes, which helps it to cook faster and more evenly.

Step 11

There are two ways to roast butternut squash—skin on, and skin off. It’s easiest to roast skin on, that way you don’t need to deal with peeling. This method words best if you are planning to make a butternut squash puree, or you simply want to scoop out the cooked flesh and you’re not worried about the presentation.

Step 12

To roast skin on, preheat oven to 400 degrees F. Slice off the stem and bottom ends of the squash so that both ends are flat.

Step 13

Set the squash on a cutting board with the widest cut end flat against the board. Use a heavy chef’s knife to cut the squash from top to bottom, slicing it in half vertically. This may be difficult depending on how strong or sharp your knife is, or how big and thick your squash is. Take your time. If you encounter some resistance, you can tap downward on either end of your knife blade with a rubber mallet to slowly move it along. If you've pre-microwaved your squash, the slicing should be easier.

Step 14

Once you’ve sliced the squash in half, scoop out the seeds with a metal spoon. Reserve them for roasting, if desired.

Step 15

Brush the cut surfaces of the squash with olive oil.

Step 16

Place the squash halves cut side down onto a baking sheet.

Step 17

Roast the squash for about 1 hour, turning the sheet once halfway through cooking. Start checking for doneness around 45 minutes—smaller squash will cook faster. It will take a full hour or longer to cook a 3 pound squash.

Step 18

The squash is done when the flesh is tender all the way through to the skin. The outer beige skin will be slightly blistered and browned. The inner flesh will be dark orange, soft, and caramelized around the edges.

Step 19

The easiest way to roast squash that has already been peeled is to dice it into 1-inch cubes. The smaller size will help the squash to roast more evenly.

Step 20

Preheat oven to 400 degrees F. Place the cubes into a large mixing bowl and toss with 1-2 tbsp olive oil (I use about 2 tbsp for a 3 lb. squash). You can also toss it with minced garlic, if you’d like.

Step 21

Spread the squash out evenly across 1 or 2 baking sheets. I like to line the tray with a silpat for easy cleanup. Sprinkle the squash with salt, pepper, and any other seasonings you like.

Step 22

Roast the squash for 30-40 minutes, stirring once halfway through cooking, till the largest pieces of squash are fork tender.

Step 23

A 3 lb squash will produce about 1/3 cup of cleaned seeds. Preheat oven to 325 degrees F. Place seeds and pulp into a mixing bowl. Cover the seeds with water. Use your fingers to separate seeds from the fibrous butternut squash threads. It is easiest to do this underwater.

Step 24

Drain the seeds in a colander. Pick through the seeds and discard the loose orange squash threads.

Step 25

Bring 1 quart of water and 1 tsp of salt to a boil. Add the seeds (up to 2 cups of seeds per quart of water) and boil for 10 minutes.

Step 26

Drain the seeds in a colander and pat dry with a paper towel or towel. A few seeds will stick to the towel as you dry, just use your fingers to brush them back into the colander. Pour the seeds into a mixing bowl and toss them with a little olive oil or melted butter. I use about 1 tsp of olive oil or 2 tsp of melted butter per 1 cup of seeds.

Step 27

Spread the seeds out in a single layer onto a baking sheet. Season with salt and any other seasonings you like. Smoked paprika, cinnamon-sugar, nutmeg, chili powder, or cayenne (spicy!) will all work well. I prefer my seeds simple, with a generous sprinkling of salt.

Step 28

Toast the seeds in the oven for about 20 minutes, watching carefully to make sure they don’t burn. They won’t change color much (if they turn too brown they’ll be over-done), so the best way to check for doneness is to taste them. I’ve found that once I hear a few seeds “pop” like popcorn in the oven, that’s the perfect time to take them out. Don’t let them stay in much longer after that first “pop,” or you risk burning them.

Step 29

The seeds end up crispy and delicious, with a flavor similar to fresh popcorn. Delish!