Roasting chestnuts is an absolute delight! The aroma alone is enough to make your mouth water. Picture this: a crisp autumn evening, a crackling fire, and a basket full of chestnuts roasting away. The sound of the shells popping open and the chestnuts sizzling is music to your ears. But it’s not just about the sensory experience – roasted chestnuts are a true culinary delight. They have a rich and nutty flavor that is simply irresistible. Plus, they are incredibly versatile. You can enjoy them as a snack, add them to salads or stuffing, make a roasted chestnut soup or even use them in desserts like cakes and pies. So why wait? Get yourself a batch of chestnuts and start roasting!

SIS - Simple is Smart Tip for Roasting Chestnuts

Use a serrated knife to score the chestnuts. Gently “saw” a slit in the top of the chestnut.  If you don’t score the chestnuts before roasting they might explode in the roasting pan making a mess in the oven.

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Grow, Harvest, Roast Chestnuts

Neuro Nutrition Nugget - Chestnuts

Did you know that chestnuts are not only delicious but also incredibly good for your brain? It’s true! These humble nuts are packed with nutrients that are essential for brain health. Chestnuts are a great source of vitamin B6, which helps in the production of neurotransmitters that are responsible for transmitting signals in our brain. Additionally, they are rich in antioxidants that protect our brain cells from damage caused by free radicals. So, next time you’re looking for a healthy snack to boost your brain power, reach for some chestnuts and fuel your mind with their amazing benefits!

Different Methods for Roasting Chestnuts

I’ve experimented over the years with different methods and way’s to roast Chestnuts.  I’ve roasted them in the airfryer, the oven, and over an open flame.  I’ve had success with all of the methods. If you prefer a soft and creamy all the way through roasted chestnut the instant pot or boiling the chestnut before roasting is the way to go.  If you are going for a   slightly crunchy on the outside roasted chestnut then an open flame or the airfryer is the way to go.

How to Roast Chestnuts

Roasting Times:

All of our Chestnut Trees are the Japanese Chestnut which has a smaller nut than the Italian or European Chestnut.  I list a roasting time range.  The lower end number is perfect for a chestnut that has about a 1 inch diameter.  The upper end is for a larger chestnut.  

If you are unsure how long to roast your chestnuts, remove a nut when the time reaches the lower number, peel it and check it for doneness.  It should be soft, nutty, and slightly sweet tasting.  If it is firm and bitter continue roasting.  Check a nut every 5-7 minutes until your chestnuts are done and remove them all from the fire.

How to Roast Chestnuts

How to Cut a Slit in the Top of the Chestnut

Before you roast your chestnuts you want to cut a slit or an X in the top of the nut.  I use a serrated knife to just saw through the nuts shell.  Try to not cut into the nut if possible.  I find it’s easiest to make a single slit in the top instead of an X.  However the downside of not cutting the X is that the nut often breaks in half when it comes out of the shell.  An X is harder to do but makes the nut easier to shell once it’s roasted.  There are commercial nut scoring tools you can purchase.  The one I tried cut into the flesh of the nut.  But did make the scoring safer and easier.

Peeling your Roasted Chestnuts

Don’t try to peel the chestnuts before you roast or cook them.   Once they are roasted or cooked peel them while they are still warm.  The inside of the shell has a dark brown skin that will adhere to the nut as the nut cools.  This skin is bitter and comes off easily with the shell if you peel the chestnuts while they are still hot or very warm. As soon as they come out of the oven I wrap them in a kitchen towel and squish or compress them together.  They make a crackling sound and the crackling helps loosen the shells.  I’ve found it makes them easier to peel.

Open Flame or Air Fryer

Open Flame:   There’s nothing quite like the smoky aroma and delicious taste of freshly roasted chestnuts. First, gather your chestnuts – make sure they are fresh and not too old. Now, it’s time to build your fire! Find a safe spot outdoors and create a cozy fire pit. Once the flames have died down and you have a nice bed of coals,  place a wire mesh or iron skillet over the fire. Now, it’s time to roast those chestnuts! Make a small slit on each chestnut to prevent them from exploding. Place them on the wire mesh or skillet and let them roast for about 10 – 20 minutes, turning occasionally. Finally, take them off the fire and let them cool for a few minutes. Now, it’s time to crack open that delicious shell and savor the creamy, nutty goodness inside. Roasting chestnuts over an open flame is an experience that will warm your heart and soul. So gather your loved ones, get cozy by the fire, and enjoy this festive tradition!  You can also roast them on the BBQ using a grill basket.  However, there is something extra special about getting together with family and friends for an evening of roasting chestnuts, stories, and of course finishing the night off with a few smores.

Air Fryer:  First, preheat your air fryer to 400 degrees Fahrenheit. Then, using a knife, make a small slit on the flat side of each chestnut. This will prevent them from exploding during the cooking process. Place the chestnuts in the air fryer basket and cook for about 10-20 minutes, shaking the basket every 5 minutes to ensure even cooking. The result? Perfectly roasted chestnuts that are crispy on the outside and tender on the inside. It’s a must-try for all chestnut lovers out there

How to Roast Chestnuts


Start by preheating your oven to a toasty temperature, around 400 degrees Fahrenheit. While the oven is heating up, take a moment to make an incision on each chestnut, ensuring they won’t explode during the roasting process. Once the oven is ready, place the chestnuts in a cast iron skillet or on a baking sheet and let them roast for about 10-20 minutes, or until the shells start to peel back. I’ve also roasted them directly on an oven steel.

Once they’re done, take them out of the oven and let them cool for a few minutes before peeling them and indulging in their warm, nutty goodness. So go ahead, roast some chestnuts in your oven and experience the joy of this timeless culinary tradition!

Instant Pot

I cook chestnuts in the Instant Pot when I want soft creamy chestnuts for making chestnut Puree de Marrons  or for Chestnut soup.

When you cook chestnuts in the Instant Pot you don’t have to Score them or cut a slit in them.  Put them in the instant pot, add enough water to just cover them.  Pressure cook them on high for 10 minutes (15 minutes if large chestnuts) and let the steam naturally release.  Remove them one at a time leaving the rest in the hot water to stay warm. Peel them while they are still hot. The shells split during the pressure cooking but if the shell for one doesn’t split use a serrated knif to score it before peeling.

Sweetened Chestnut Puree (Puree de marrons)

Storing your Roasted Chestnuts

Unroasted Nuts in the shell:  Store unroasted nuts in the refrigerator in a mesh bag that let’s the air circulate around the nuts.  Putting them in a plastic bag shortens their shelf life because they start to spoil from the moisture in the bag.

Roasted peeled nuts:  Store in an airtight container for 4-5 days. To freeze, freeze the nuts individually on a cookie sheet.  Once frozen store in a ziplock back for up to 2 months or vacuum pack and store for up to 2 years.  Defrost in the fridge and use in your favorite recipes or warm them in the oven at 350-degrees F for 5-7 minutes. 

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How to Perfectly Roast Chestnuts

Perfectly Roast Chestnuts with this simple yet incredibly satisfying process. Fill your home with the warm and irresistible aroma of toasted chestnuts.
Servings 1 lb
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes


  • This page contains Amazon affiliate links. If you click a link, I may earn a small commission from qualifying purchases at no extra cost to you


  • 1.5 lbs fresh chestnuts*


  • Create a slit or an X in the top of each chestnut with a sharp knife
    How to Roast Chestnuts
  • Preheat oven to 400℉
  • Roast chestnuts for 10 -20 minutes. 10 minutes for small nuts, 20 minutes for large nuts.
    How to Roast Chestnuts
  • Peel while still hot. If the nuts cool there is a thin bitter skin on the inside of the shell that will stick to the nut.
  • Dip in a little butter and sprinkle with salt, cinnamon, or nutmeg.


There are about 12 - 15 Large chestnuts and 24 small chestnuts in a lb of chestnuts.
Cost: $5.00
Course: Side Dish, Snack, Vegetable
Cuisine: American
Keyword: easy, gluten freee, healthy, roasted chestnuts

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