See step by step the process to thicken food using beurre manié, following the photo order. 

1. Soften the butter and knead it with the flour to create a uniform mixture.

   

2. To thicken a liquid with beurre manié, bring it to the boil and add the butter and flour mixture.

   

3.  Stir using a whisk until homogenized.

   

4. Simmer for at least 2-3 minutes or until the liquid achieves the desired consistency.

   

5. Strain through a fine sieve to remove possible lumps.