Here are my sewing instructions for homemade fabric napkins:
1) Cut fabric squares of 17" x 17"
(or whatever size makes you happy). This left me with some smaller pieces that I will make into snack napkins to use with tea, dessert, etc.
2) Iron in a 1/4" hem on all 4 sides, then another 1/4" hem to tuck in the raw edge.
3)
Miter the corners. You can also leave them square, but I have perfectionist tendencies so I mitered mine :)
4) Sew all the way around the edge. Voila!
The first batch of 23 is done :)