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I like preparing a large quantity of Roux and pouring them in ice trays to keep them in the freezer. However, I'm always confused about the right way of defrosting them for use.

The typical use of it is to make white sauce for mac n cheese/pasta. The way i've been using them till now is to take the require amount of milk in a pan, add the cubes and then let it be for 5 minutes or so THEN start the heating. But I'm not convinced this is the best way.

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up vote 3 down vote accepted

You don't need to defrost it, you can add cold roux directly to a boiling liquid. To avoid lumps from the roux, most cooks suggest you either add cold roux to a hot sauce, or cold liquid to hot roux.

If you heat the roux gradually with the liquid you may get lumps, and don't get a good impression of how much thickening is going on until it heats fully.

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Perfect. I'd +1 if I could. Accepted answer. – user9141 Jul 7 '12 at 6:39

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