Picture of make a sauce
a sauce is an essential skill used to top many items after they're cooked.
Simple way to make a sauce

You'll need:

1 tbs flour
1 1/2 tbs butter
1 cup cold liquid

Step 1: Melt butter and cook flour

Picture of melt butter and cook flour
roux beginning.jpg
 add both together and let cook on low for 5 min. or until a very light brown.