How to roast chestnuts To roast the chestnuts in the oven, start by heating your oven between 400 to 425 degrees Fahrenheit, Hamm says.

Pop them in the oven for about 10 to 25 minutes, Hamm recommends. To make sure the chestnuts are evenly roasted, be sure to rotate them half-way through, Gooden adds.

I read a couple recipes that called for wrapping the chestnuts in a kitchen towel after they come out of the oven, to trap some of the steam, which helps the peels slide off.