Put it inside a plastic bag or container, and put it in the refrigerator. It will be fine there. Its shelf life there should be about a month. Cook equal parts of flour and butter over low heat to make a roux, then add cream or milk to it. This reduces down and becomes very thick.
Cake flour is a fine-textured flour with a high starch content.
All-purpose flour also contains additional vitamins and minerals. Then take Dijon mustard and smear it all over. Pat some dark brown sugar all over, then stick whole cloves in for appearance. You can also buy powdered meringue, and use that to get away from the egg issue. I am brand new at making jelly, but wanted to try to make some savory ones this year for Christmas gifts.