Yes, these are sew fast to make up that you still have time to whip up a few before Christmas, IF you have the right scrim-free batting.
This is the one I use, and one package will make 6. Your local quilt shop might carry it, if not,
To make one bag, you’ll need 2 pieces of quilters cotton, 12 inches by 22 inches, and one piece of scrim-free batting 12″ x 22″
If you open out the batting like this diagram, you can cut 6 from one piece with very little waste.
Place your 2 pieces of quilters cotton with right sides together, then smooth the batting on top with all edges even. Turn it over so the batting is on the bottom, and using 100% cotton thread and 1/4″ seam allowance, sew the 2 short ends through all layers. I found it fed better with the batting down, and my Dual Feed foot was my best friend.
Trim the seam allowance to 1/8th ” , then turn right sides out so the batting is in between the fabric. Press with iron to flatten, then top-stitch along each short end.
I quilted this flat piece about 5 inches apart using cotton thread. I suspect these will end up in the laundry, and I don’t want the batting to bunch up.
With right side up, fold one short end in toward the middle by 2 inches. Bring the other short end over so it’s 1/4″ from the fold and pin or clip to hold.
Sew up the sides, using a generous 1/4 inch seam allowance. Trim close to the stitching, then turn right side out. Poke out the corners carefully, then press well with the iron to flatten. Top-stitch 1/4 inch from each side to hide the raw edges.
To use: Wash and dry baking potatoes. No need to poke holes in them. Wrap in a dry paper towel and insert into the bag. Microwave for the correct length of time according to your oven.
I use a piece of clean cotton muslin instead of the paper towel to save garbage.
This bag is large enough for corn, too.
Here’s a PDF of the instructions, as well as a page with 4 sets of cooking instructions. If you don’t want to print them, only print page 1.