This is an easy pattern. Circles are easy to crochet in general in simple dc, sc, etc.: just keep increasing groupings one more stitch farther apart for each and every new row and the circle should lay flat even if you keep going like that for forever.
Crochet Jar Covers, I need to make some more of these. The scalloped edge on these is nice. A great way to use crochet thread up is to make rainbow colored crochet jar covers. Some all white ones would also be nice. Crochet - Dressing up Jars Más