I would like to make my own puree and would like to know of any ways that might be recommended for cooking them first. I tried the oven once and they started exploding: Ideas?
Good technique for cooking chestnuts
chestnuts
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Yes, but chestnut purée comes in sweetened and unsweetened varieties, so making your own depends on what you'll be using it for. Chestnuts are pretty versatile, but I've come across using sweetened purée in old world desserts, while the unsweetened purée is typically used with root vegetables and winter squashes (the European variety of chestnut drop in late fall).
You'll start by scoring the skin of the raw nuts and roasting them at 400° (this prevents them from bursting). After this, peeling them is easy work. You will then boil them, optionally in a sugar syrup. Finally, reserve the liquid and puree in a food processor, adding back the liquid for the desired consistency.
About a pound of chestnuts per cup of purée.
In Spain, the traditional way is using something like this:
Or a pan with holes. The big day to do it is called Magosto and it's celebrated on 11/11, but it varies from town to town. It's one of the closest things to a barbecue, you first roast chorizos, then you roast chestnuts.
If you don't have access to those tools, your best option is to put them close to the fire. Make a small cut in almost each chestnut (to release moisture). The ones without the cut will pop and tell you when they start to be done. Start checking for doneness at that point.
Maybe you already knew about the cut, but I know some people don't roast at home because they don't know it can be done in a regular oven if the cuts are in place to avoid the chestnuts popping wildly.
Best Answer
If you are going to cook chestnuts, you need to score them first. Most commonly, they're scored in an X pattern -- try to do it on the side away from the flattest side. Make sure you cut all the way through the shell. Then as they cook, the shell will actually peel back slightly as they cook. Here's a link with pictures about baking them. (425 degrees until they're done, 20 to 30 minutes.)
For certain recipes, you can also boil them. According to this website, you can boil them for about 3 minutes and then peel them. You then will need to finish cooking them in your recipe. Or you can boil them in the shell for 15-20 minutes. This will lead to them falling apart -- which may be appropriate for a chestnut puree.
Still another method I found is to cook them in oil, as described here. Cook for 5-10 minutes, stirring constantly.