How to Skim Fat
Sure, you can remove fat from a soup (or a stew or a sauce) by gingerly and repeatedly skimming the soup as it simmers. But doing so requires constant attention and eliminates only some of the grease. The better way? Make the soup in advance and do the following.
Step 1: Transfer the soup to a container and cool it in the refrigerator for several hours. The fat will rise to the surface and solidify.
Step 2: Using a spoon, lift off and discard the fat. Reheat the soup as desired.